 |
ROOT
6.06/09
Reference Guide
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|
ROOT
6.06/09
Reference Guide
|
Service class for 2-Dim histogram classes.
Public Member Functions | |
| virtual | ~TH2 () |
| Destructor. More... | |
| virtual Int_t | BufferEmpty (Int_t action=0) |
| Fill histogram with all entries in the buffer. More... | |
| virtual void | Copy (TObject &hnew) const |
| Copy. More... | |
| virtual Int_t | Fill (Double_t x, Double_t y) |
| Increment cell defined by x,y by 1. More... | |
| virtual Int_t | Fill (Double_t x, Double_t y, Double_t w) |
| Increment cell defined by x,y by a weight w. More... | |
| virtual Int_t | Fill (Double_t x, const char *namey, Double_t w) |
| Increment cell defined by x,namey by a weight w. More... | |
| virtual Int_t | Fill (const char *namex, Double_t y, Double_t w) |
| Increment cell defined by namex,y by a weight w. More... | |
| virtual Int_t | Fill (const char *namex, const char *namey, Double_t w) |
| Increment cell defined by namex,namey by a weight w. More... | |
| virtual void | FillN (Int_t, const Double_t *, const Double_t *, Int_t) |
| Fill this histogram with an array x and weights w. More... | |
| virtual void | FillN (Int_t ntimes, const Double_t *x, const Double_t *y, const Double_t *w, Int_t stride=1) |
| Fill a 2-D histogram with an array of values and weights. More... | |
| virtual void | FillRandom (const char *fname, Int_t ntimes=5000) |
| Fill histogram following distribution in function fname. More... | |
| virtual void | FillRandom (TH1 *h, Int_t ntimes=5000) |
| Fill histogram following distribution in histogram h. More... | |
| virtual Int_t | FindFirstBinAbove (Double_t threshold=0, Int_t axis=1) const |
| Find first bin with content > threshold for axis (1=x, 2=y, 3=z) if no bins with content > threshold is found the function returns -1. More... | |
| virtual Int_t | FindLastBinAbove (Double_t threshold=0, Int_t axis=1) const |
| Find last bin with content > threshold for axis (1=x, 2=y, 3=z) if no bins with content > threshold is found the function returns -1. More... | |
| virtual void | FitSlicesX (TF1 *f1=0, Int_t firstybin=0, Int_t lastybin=-1, Int_t cut=0, Option_t *option="QNR", TObjArray *arr=0) |
| Project slices along X in case of a 2-D histogram, then fit each slice with function f1 and make a histogram for each fit parameter Only bins along Y between firstybin and lastybin are considered. More... | |
| virtual void | FitSlicesY (TF1 *f1=0, Int_t firstxbin=0, Int_t lastxbin=-1, Int_t cut=0, Option_t *option="QNR", TObjArray *arr=0) |
| Project slices along Y in case of a 2-D histogram, then fit each slice with function f1 and make a histogram for each fit parameter Only bins along X between firstxbin and lastxbin are considered. More... | |
| virtual Int_t | GetBin (Int_t binx, Int_t biny, Int_t binz=0) const |
| Return Global bin number corresponding to binx,y,z. More... | |
| virtual Double_t | GetBinWithContent2 (Double_t c, Int_t &binx, Int_t &biny, Int_t firstxbin=1, Int_t lastxbin=-1, Int_t firstybin=1, Int_t lastybin=-1, Double_t maxdiff=0) const |
| compute first cell (binx,biny) in the range [firstxbin,lastxbin][firstybin,lastybin] for which diff = abs(cell_content-c) <= maxdiff In case several cells in the specified range with diff=0 are found the first cell found is returned in binx,biny. More... | |
| virtual Double_t | GetBinContent (Int_t bin) const |
| Return content of bin number bin. More... | |
| virtual Double_t | GetBinContent (Int_t binx, Int_t biny) const |
| virtual Double_t | GetBinContent (Int_t binx, Int_t biny, Int_t) const |
| virtual Double_t | GetBinErrorLow (Int_t binx, Int_t biny) |
| virtual Double_t | GetBinErrorUp (Int_t binx, Int_t biny) |
| virtual Double_t | GetCorrelationFactor (Int_t axis1=1, Int_t axis2=2) const |
| Return correlation factor between axis1 and axis2. More... | |
| virtual Double_t | GetCovariance (Int_t axis1=1, Int_t axis2=2) const |
| Return covariance between axis1 and axis2. More... | |
| virtual void | GetRandom2 (Double_t &x, Double_t &y) |
| Return 2 random numbers along axis x and y distributed according the cellcontents of a 2-dim histogram return a NaN if the histogram has a bin with negative content. More... | |
| virtual void | GetStats (Double_t *stats) const |
| Fill the array stats from the contents of this histogram The array stats must be correctly dimensionned in the calling program. More... | |
| virtual Double_t | Integral (Option_t *option="") const |
| Return integral of bin contents. More... | |
| virtual Double_t | Integral (Int_t binx1, Int_t binx2, Int_t biny1, Int_t biny2, Option_t *option="") const |
| Return integral of bin contents in range [firstxbin,lastxbin],[firstybin,lastybin] for a 2-D histogram By default the integral is computed as the sum of bin contents in the range. More... | |
| virtual Double_t | Integral (Int_t, Int_t, Int_t, Int_t, Int_t, Int_t, Option_t *="") const |
| virtual Double_t | IntegralAndError (Int_t binx1, Int_t binx2, Int_t biny1, Int_t biny2, Double_t &err, Option_t *option="") const |
| Return integral of bin contents in range [firstxbin,lastxbin],[firstybin,lastybin] for a 2-D histogram. More... | |
| virtual Double_t | Interpolate (Double_t x) |
| illegal for a TH2 More... | |
| virtual Double_t | Interpolate (Double_t x, Double_t y) |
| Given a point P(x,y), Interpolate approximates the value via bilinear interpolation based on the four nearest bin centers see Wikipedia, Bilinear Interpolation Andy Mastbaum 10/8/2008 vaguely based on R.Raja 6-Sep-2008. More... | |
| virtual Double_t | Interpolate (Double_t x, Double_t y, Double_t z) |
| illegal for a TH2 More... | |
| virtual Double_t | KolmogorovTest (const TH1 *h2, Option_t *option="") const |
| Statistical test of compatibility in shape between THIS histogram and h2, using Kolmogorov test. More... | |
| virtual Long64_t | Merge (TCollection *list) |
| Add all histograms in the collection to this histogram. More... | |
| virtual TH2 * | RebinX (Int_t ngroup=2, const char *newname="") |
| Rebin only the X axis see Rebin2D. More... | |
| virtual TH2 * | RebinY (Int_t ngroup=2, const char *newname="") |
| Rebin only the Y axis see Rebin2D. More... | |
| virtual TH2 * | Rebin2D (Int_t nxgroup=2, Int_t nygroup=2, const char *newname="") |
| Rebin this histogram grouping nxgroup/nygroup bins along the xaxis/yaxis together. More... | |
| TProfile * | ProfileX (const char *name="_pfx", Int_t firstybin=1, Int_t lastybin=-1, Option_t *option="") const |
| Project a 2-D histogram into a profile histogram along X. More... | |
| TProfile * | ProfileY (const char *name="_pfy", Int_t firstxbin=1, Int_t lastxbin=-1, Option_t *option="") const |
| Project a 2-D histogram into a profile histogram along Y. More... | |
| TH1D * | ProjectionX (const char *name="_px", Int_t firstybin=0, Int_t lastybin=-1, Option_t *option="") const |
| Project a 2-D histogram into a 1-D histogram along X. More... | |
| TH1D * | ProjectionY (const char *name="_py", Int_t firstxbin=0, Int_t lastxbin=-1, Option_t *option="") const |
| Project a 2-D histogram into a 1-D histogram along Y. More... | |
| virtual void | PutStats (Double_t *stats) |
| Replace current statistics with the values in array stats. More... | |
| TH1D * | QuantilesX (Double_t prob=0.5, const char *name="_qx") const |
| Compute the X distribution of quantiles in the other variable Y name is the name of the returned histogram prob is the probability content for the quantile (0.5 is the default for the median) An approximate error for the quantile is computed assuming that the distribution in the other variable is normal. More... | |
| TH1D * | QuantilesY (Double_t prob=0.5, const char *name="_qy") const |
| Compute the Y distribution of quantiles in the other variable X name is the name of the returned histogram prob is the probability content for the quantile (0.5 is the default for the median) An approximate error for the quantile is computed assuming that the distribution in the other variable is normal. More... | |
| virtual void | Reset (Option_t *option="") |
| Reset this histogram: contents, errors, etc. More... | |
| virtual void | SetBinContent (Int_t bin, Double_t content) |
| Set bin content. More... | |
| virtual void | SetBinContent (Int_t binx, Int_t biny, Double_t content) |
| virtual void | SetBinContent (Int_t binx, Int_t biny, Int_t, Double_t content) |
| virtual void | SetShowProjectionX (Int_t nbins=1) |
| When the mouse is moved in a pad containing a 2-d view of this histogram a second canvas shows the projection along X corresponding to the mouse position along Y. More... | |
| virtual void | SetShowProjectionY (Int_t nbins=1) |
| When the mouse is moved in a pad containing a 2-d view of this histogram a second canvas shows the projection along Y corresponding to the mouse position along X. More... | |
| virtual TH1 * | ShowBackground (Int_t niter=20, Option_t *option="same") |
| This function calculates the background spectrum in this histogram. More... | |
| virtual Int_t | ShowPeaks (Double_t sigma=2, Option_t *option="", Double_t threshold=0.05) |
| Interface to TSpectrum2::Search the function finds peaks in this histogram where the width is > sigma and the peak maximum greater than threshold*maximum bin content of this. More... | |
| virtual void | Smooth (Int_t ntimes=1, Option_t *option="") |
| Smooth bin contents of this 2-d histogram using kernel algorithms similar to the ones used in the raster graphics community. More... | |
 Public Member Functions inherited from TH1 | |
| virtual | ~TH1 () |
| Histogram default destructor. More... | |
| virtual Bool_t | Add (TF1 *h1, Double_t c1=1, Option_t *option="") |
| Performs the operation: this = this + c1*f1 if errors are defined (see TH1::Sumw2), errors are also recalculated. More... | |
| virtual Bool_t | Add (const TH1 *h1, Double_t c1=1) |
| Performs the operation: this = this + c1*h1 If errors are defined (see TH1::Sumw2), errors are also recalculated. More... | |
| virtual Bool_t | Add (const TH1 *h, const TH1 *h2, Double_t c1=1, Double_t c2=1) |
| Replace contents of this histogram by the addition of h1 and h2. More... | |
| virtual void | AddBinContent (Int_t bin) |
| Increment bin content by 1. More... | |
| virtual void | AddBinContent (Int_t bin, Double_t w) |
| Increment bin content by a weight w. More... | |
| virtual void | Browse (TBrowser *b) |
| Browe the Histogram object. More... | |
| virtual Bool_t | CanExtendAllAxes () const |
| returns true if all axes are extendable More... | |
| virtual Double_t | Chi2Test (const TH1 *h2, Option_t *option="UU", Double_t *res=0) const |
| chi^{2} test for comparing weighted and unweighted histograms More... | |
| virtual Double_t | Chi2TestX (const TH1 *h2, Double_t &chi2, Int_t &ndf, Int_t &igood, Option_t *option="UU", Double_t *res=0) const |
| The computation routine of the Chisquare test. More... | |
| virtual Double_t | Chisquare (TF1 *f1, Option_t *option="") const |
| Compute and return the chisquare of this histogram with respect to a function The chisquare is computed by weighting each histogram point by the bin error By default the full range of the histogram is used. More... | |
| virtual void | ClearUnderflowAndOverflow () |
| Remove all the content from the underflow and overflow bins, without changing the number of entries After calling this method, every undeflow and overflow bins will have content 0.0 The Sumw2 is also cleared, since there is no more content in the bins. More... | |
| virtual Double_t | ComputeIntegral (Bool_t onlyPositive=false) |
| Compute integral (cumulative sum of bins) The result stored in fIntegral is used by the GetRandom functions. More... | |
| TObject * | Clone (const char *newname=0) const |
| Make a complete copy of the underlying object. More... | |
| virtual void | DirectoryAutoAdd (TDirectory *) |
| Perform the automatic addition of the histogram to the given directory. More... | |
| virtual Int_t | DistancetoPrimitive (Int_t px, Int_t py) |
| Compute distance from point px,py to a line. More... | |
| virtual Bool_t | Divide (TF1 *f1, Double_t c1=1) |
| Performs the operation: this = this/(c1*f1) if errors are defined (see TH1::Sumw2), errors are also recalculated. More... | |
| virtual Bool_t | Divide (const TH1 *h1) |
| Divide this histogram by h1. More... | |
| virtual Bool_t | Divide (const TH1 *h1, const TH1 *h2, Double_t c1=1, Double_t c2=1, Option_t *option="") |
| Replace contents of this histogram by the division of h1 by h2. More... | |
| virtual void | Draw (Option_t *option="") |
| Draw this histogram with options. More... | |
| virtual TH1 * | DrawCopy (Option_t *option="", const char *name_postfix="_copy") const |
| Copy this histogram and Draw in the current pad. More... | |
| virtual TH1 * | DrawNormalized (Option_t *option="", Double_t norm=1) const |
| Draw a normalized copy of this histogram. More... | |
| virtual void | DrawPanel () |
| Display a panel with all histogram drawing options. More... | |
| virtual void | Eval (TF1 *f1, Option_t *option="") |
| Evaluate function f1 at the center of bins of this histogram. More... | |
| virtual void | ExecuteEvent (Int_t event, Int_t px, Int_t py) |
| Execute action corresponding to one event. More... | |
| virtual void | ExtendAxis (Double_t x, TAxis *axis) |
| Histogram is resized along axis such that x is in the axis range. More... | |
| virtual TH1 * | FFT (TH1 *h_output, Option_t *option) |
| This function allows to do discrete Fourier transforms of TH1 and TH2. More... | |
| virtual Int_t | FindBin (Double_t x, Double_t y=0, Double_t z=0) |
| Return Global bin number corresponding to x,y,z. More... | |
| virtual Int_t | FindFixBin (Double_t x, Double_t y=0, Double_t z=0) const |
| Return Global bin number corresponding to x,y,z. More... | |
| virtual TObject * | FindObject (const char *name) const |
| search object named name in the list of functions More... | |
| virtual TObject * | FindObject (const TObject *obj) const |
| search object obj in the list of functions More... | |
| virtual TFitResultPtr | Fit (const char *formula, Option_t *option="", Option_t *goption="", Double_t xmin=0, Double_t xmax=0) |
| Fit histogram with function fname. More... | |
| virtual TFitResultPtr | Fit (TF1 *f1, Option_t *option="", Option_t *goption="", Double_t xmin=0, Double_t xmax=0) |
| Fit histogram with function f1. More... | |
| virtual void | FitPanel () |
| Display a panel with all histogram fit options. More... | |
| TH1 * | GetAsymmetry (TH1 *h2, Double_t c2=1, Double_t dc2=0) |
| Return an histogram containing the asymmetry of this histogram with h2, where the asymmetry is defined as: More... | |
| Int_t | GetBufferLength () const |
| Int_t | GetBufferSize () const |
| const Double_t * | GetBuffer () const |
| virtual Double_t * | GetIntegral () |
| Return a pointer to the array of bins integral. More... | |
| TH1 * | GetCumulative (Bool_t forward=kTRUE, const char *suffix="_cumulative") const |
| Return a pointer to an histogram containing the cumulative The cumulative can be computed both in the forward (default) or backward direction; the name of the new histogram is constructed from the name of this histogram with the suffix suffix appended. More... | |
| TList * | GetListOfFunctions () const |
| virtual Int_t | GetNdivisions (Option_t *axis="X") const |
| Return the number of divisions for "axis". More... | |
| virtual Color_t | GetAxisColor (Option_t *axis="X") const |
| Return the number of divisions for "axis". More... | |
| virtual Color_t | GetLabelColor (Option_t *axis="X") const |
| Return the "axis" label color. More... | |
| virtual Style_t | GetLabelFont (Option_t *axis="X") const |
| Return the "axis" label font. More... | |
| virtual Float_t | GetLabelOffset (Option_t *axis="X") const |
| Return the "axis" label offset. More... | |
| virtual Float_t | GetLabelSize (Option_t *axis="X") const |
| Return the "axis" label size. More... | |
| virtual Style_t | GetTitleFont (Option_t *axis="X") const |
| Return the "axis" title font. More... | |
| virtual Float_t | GetTitleOffset (Option_t *axis="X") const |
| Return the "axis" title offset. More... | |
| virtual Float_t | GetTitleSize (Option_t *axis="X") const |
| Return the "axis" title size. More... | |
| virtual Float_t | GetTickLength (Option_t *axis="X") const |
| Return the "axis" tick length. More... | |
| virtual Float_t | GetBarOffset () const |
| virtual Float_t | GetBarWidth () const |
| virtual Int_t | GetContour (Double_t *levels=0) |
| Return contour values into array levels if pointer levels is non zero. More... | |
| virtual Double_t | GetContourLevel (Int_t level) const |
| Return value of contour number level use GetContour to return the array of all contour levels. More... | |
| virtual Double_t | GetContourLevelPad (Int_t level) const |
| Return the value of contour number "level" in Pad coordinates ie: if the Pad is in log scale along Z it returns le log of the contour level value. More... | |
| virtual void | GetBinXYZ (Int_t binglobal, Int_t &binx, Int_t &biny, Int_t &binz) const |
| return binx, biny, binz corresponding to the global bin number globalbin see TH1::GetBin function above More... | |
| virtual Double_t | GetBinCenter (Int_t bin) const |
| return bin center for 1D historam Better to use h1.GetXaxis().GetBinCenter(bin) More... | |
| virtual Double_t | GetBinError (Int_t bin) const |
| Return value of error associated to bin number bin. More... | |
| virtual Double_t | GetBinError (Int_t binx, Int_t biny) const |
| virtual Double_t | GetBinError (Int_t binx, Int_t biny, Int_t binz) const |
| virtual Double_t | GetBinErrorLow (Int_t bin) const |
| Return lower error associated to bin number bin. More... | |
| virtual Double_t | GetBinErrorUp (Int_t bin) const |
| Return upper error associated to bin number bin. More... | |
| virtual EBinErrorOpt | GetBinErrorOption () const |
| virtual Double_t | GetBinLowEdge (Int_t bin) const |
| return bin lower edge for 1D historam Better to use h1.GetXaxis().GetBinLowEdge(bin) More... | |
| virtual Double_t | GetBinWidth (Int_t bin) const |
| return bin width for 1D historam Better to use h1.GetXaxis().GetBinWidth(bin) More... | |
| virtual Double_t | GetBinWithContent (Double_t c, Int_t &binx, Int_t firstx=0, Int_t lastx=0, Double_t maxdiff=0) const |
| compute first binx in the range [firstx,lastx] for which diff = abs(bin_content-c) <= maxdiff In case several bins in the specified range with diff=0 are found the first bin found is returned in binx. More... | |
| virtual void | GetCenter (Double_t *center) const |
| Fill array with center of bins for 1D histogram Better to use h1.GetXaxis().GetCenter(center) More... | |
| TDirectory * | GetDirectory () const |
| virtual Double_t | GetEntries () const |
| return the current number of entries More... | |
| virtual Double_t | GetEffectiveEntries () const |
| number of effective entries of the histogram, neff = (Sum of weights )^2 / (Sum of weight^2 ) In case of an unweighted histogram this number is equivalent to the number of entries of the histogram. More... | |
| virtual TF1 * | GetFunction (const char *name) const |
| Return pointer to function with name. More... | |
| virtual Int_t | GetDimension () const |
| virtual Double_t | GetKurtosis (Int_t axis=1) const |
| For axis =1, 2 or 3 returns kurtosis of the histogram along x, y or z axis. More... | |
| virtual void | GetLowEdge (Double_t *edge) const |
| Fill array with low edge of bins for 1D histogram Better to use h1.GetXaxis().GetLowEdge(edge) More... | |
| virtual Double_t | GetMaximum (Double_t maxval=FLT_MAX) const |
| Return maximum value smaller than maxval of bins in the range, unless the value has been overridden by TH1::SetMaximum, in which case it returns that value. More... | |
| virtual Int_t | GetMaximumBin () const |
| Return location of bin with maximum value in the range. More... | |
| virtual Int_t | GetMaximumBin (Int_t &locmax, Int_t &locmay, Int_t &locmaz) const |
| Return location of bin with maximum value in the range. More... | |
| virtual Double_t | GetMaximumStored () const |
| virtual Double_t | GetMinimum (Double_t minval=-FLT_MAX) const |
| Return minimum value larger than minval of bins in the range, unless the value has been overridden by TH1::SetMinimum, in which case it returns that value. More... | |
| virtual Int_t | GetMinimumBin () const |
| Return location of bin with minimum value in the range. More... | |
| virtual Int_t | GetMinimumBin (Int_t &locmix, Int_t &locmiy, Int_t &locmiz) const |
| Return location of bin with minimum value in the range. More... | |
| virtual Double_t | GetMinimumStored () const |
| virtual Double_t | GetMean (Int_t axis=1) const |
| For axis = 1,2 or 3 returns the mean value of the histogram along X,Y or Z axis. More... | |
| virtual Double_t | GetMeanError (Int_t axis=1) const |
| Return standard error of mean of this histogram along the X axis. More... | |
| virtual Int_t | GetNbinsX () const |
| virtual Int_t | GetNbinsY () const |
| virtual Int_t | GetNbinsZ () const |
| virtual Int_t | GetNcells () const |
| virtual Double_t | GetNormFactor () const |
| virtual char * | GetObjectInfo (Int_t px, Int_t py) const |
| Redefines TObject::GetObjectInfo. More... | |
| Option_t * | GetOption () const |
| TVirtualHistPainter * | GetPainter (Option_t *option="") |
| return pointer to painter if painter does not exist, it is created More... | |
| virtual Int_t | GetQuantiles (Int_t nprobSum, Double_t *q, const Double_t *probSum=0) |
| Compute Quantiles for this histogram Quantile x_q of a probability distribution Function F is defined as. More... | |
| virtual Double_t | GetRandom () const |
| return a random number distributed according the histogram bin contents. More... | |
| virtual Double_t | GetStdDev (Int_t axis=1) const |
| Returns the Standard Deviation (Sigma). More... | |
| virtual Double_t | GetStdDevError (Int_t axis=1) const |
| Return error of standard deviation estimation for Normal distribution. More... | |
| virtual Double_t | GetSumOfWeights () const |
| Return the sum of weights excluding under/overflows. More... | |
| virtual TArrayD * | GetSumw2 () |
| virtual const TArrayD * | GetSumw2 () const |
| virtual Int_t | GetSumw2N () const |
| Double_t | GetRMS (Int_t axis=1) const |
| Double_t | GetRMSError (Int_t axis=1) const |
| virtual Double_t | GetSkewness (Int_t axis=1) const |
| For axis = 1, 2 or 3 returns skewness of the histogram along x, y or z axis. More... | |
| TAxis * | GetXaxis () |
| TAxis * | GetYaxis () |
| TAxis * | GetZaxis () |
| const TAxis * | GetXaxis () const |
| const TAxis * | GetYaxis () const |
| const TAxis * | GetZaxis () const |
| virtual Double_t | Integral (Int_t binx1, Int_t binx2, Option_t *option="") const |
| Return integral of bin contents in range [binx1,binx2] By default the integral is computed as the sum of bin contents in the range. More... | |
| virtual Double_t | IntegralAndError (Int_t binx1, Int_t binx2, Double_t &err, Option_t *option="") const |
| Return integral of bin contents in range [binx1,binx2] and its error By default the integral is computed as the sum of bin contents in the range. More... | |
| Bool_t | IsBinOverflow (Int_t bin) const |
| Bool_t | IsBinUnderflow (Int_t bin) const |
| virtual Double_t | AndersonDarlingTest (const TH1 *h2, Option_t *option="") const |
| Statistical test of compatibility in shape between this histogram and h2, using the Anderson-Darling 2 sample test. More... | |
| virtual Double_t | AndersonDarlingTest (const TH1 *h2, Double_t &advalue) const |
| Same funciton as above but returning also the test statistic value. More... | |
| virtual void | LabelsDeflate (Option_t *axis="X") |
| Reduce the number of bins for the axis passed in the option to the number of bins having a label. More... | |
| virtual void | LabelsInflate (Option_t *axis="X") |
| Double the number of bins for axis. More... | |
| virtual void | LabelsOption (Option_t *option="h", Option_t *axis="X") |
| Set option(s) to draw axis with labels. More... | |
| virtual Bool_t | Multiply (TF1 *h1, Double_t c1=1) |
| Performs the operation: this = this*c1*f1 if errors are defined (see TH1::Sumw2), errors are also recalculated. More... | |
| virtual Bool_t | Multiply (const TH1 *h1) |
| Multiply this histogram by h1. More... | |
| virtual Bool_t | Multiply (const TH1 *h1, const TH1 *h2, Double_t c1=1, Double_t c2=1, Option_t *option="") |
| Replace contents of this histogram by multiplication of h1 by h2. More... | |
| virtual void | Paint (Option_t *option="") |
| Control routine to paint any kind of histograms. More... | |
| virtual void | Print (Option_t *option="") const |
| Print some global quantities for this histogram. More... | |
| virtual TH1 * | Rebin (Int_t ngroup=2, const char *newname="", const Double_t *xbins=0) |
| Rebin this histogram. More... | |
| virtual void | Rebuild (Option_t *option="") |
| Using the current bin info, recompute the arrays for contents and errors. More... | |
| virtual void | RecursiveRemove (TObject *obj) |
| Recursively remove object from the list of functions. More... | |
| virtual void | ResetStats () |
| Reset the statistics including the number of entries and replace with values calculates from bin content The number of entries is set to the total bin content or (in case of weighted histogram) to number of effective entries. More... | |
| virtual void | SavePrimitive (std::ostream &out, Option_t *option="") |
| Save primitive as a C++ statement(s) on output stream out. More... | |
| virtual void | Scale (Double_t c1=1, Option_t *option="") |
| Multiply this histogram by a constant c1. More... | |
| virtual void | SetAxisColor (Color_t color=1, Option_t *axis="X") |
| Set color to draw the axis line and tick marks. More... | |
| virtual void | SetAxisRange (Double_t xmin, Double_t xmax, Option_t *axis="X") |
| Set the "axis" range. More... | |
| virtual void | SetBarOffset (Float_t offset=0.25) |
| virtual void | SetBarWidth (Float_t width=0.5) |
| virtual void | SetBinError (Int_t bin, Double_t error) |
| see convention for numbering bins in TH1::GetBin More... | |
| virtual void | SetBinError (Int_t binx, Int_t biny, Double_t error) |
| see convention for numbering bins in TH1::GetBin More... | |
| virtual void | SetBinError (Int_t binx, Int_t biny, Int_t binz, Double_t error) |
| see convention for numbering bins in TH1::GetBin More... | |
| virtual void | SetBins (Int_t nx, Double_t xmin, Double_t xmax) |
| Redefine x axis parameters. More... | |
| virtual void | SetBins (Int_t nx, const Double_t *xBins) |
| Redefine x axis parameters with variable bin sizes. More... | |
| virtual void | SetBins (Int_t nx, Double_t xmin, Double_t xmax, Int_t ny, Double_t ymin, Double_t ymax) |
| Redefine x and y axis parameters. More... | |
| virtual void | SetBins (Int_t nx, const Double_t *xBins, Int_t ny, const Double_t *yBins) |
| Redefine x and y axis parameters with variable bin sizes. More... | |
| virtual void | SetBins (Int_t nx, Double_t xmin, Double_t xmax, Int_t ny, Double_t ymin, Double_t ymax, Int_t nz, Double_t zmin, Double_t zmax) |
| Redefine x, y and z axis parameters. More... | |
| virtual void | SetBins (Int_t nx, const Double_t *xBins, Int_t ny, const Double_t *yBins, Int_t nz, const Double_t *zBins) |
| Redefine x, y and z axis parameters with variable bin sizes. More... | |
| virtual void | SetBinsLength (Int_t=-1) |
| virtual void | SetBinErrorOption (EBinErrorOpt type) |
| virtual void | SetBuffer (Int_t buffersize, Option_t *option="") |
| set the maximum number of entries to be kept in the buffer More... | |
| virtual UInt_t | SetCanExtend (UInt_t extendBitMask) |
| make the histogram axes extendable / not extendable according to the bit mask returns the previous bit mask specifying which axes are extendable More... | |
| virtual void | SetContent (const Double_t *content) |
| Replace bin contents by the contents of array content. More... | |
| virtual void | SetContour (Int_t nlevels, const Double_t *levels=0) |
| Set the number and values of contour levels. More... | |
| virtual void | SetContourLevel (Int_t level, Double_t value) |
| Set value for one contour level. More... | |
| virtual void | SetDirectory (TDirectory *dir) |
| By default when an histogram is created, it is added to the list of histogram objects in the current directory in memory. More... | |
| virtual void | SetEntries (Double_t n) |
| virtual void | SetError (const Double_t *error) |
| Replace bin errors by values in array error. More... | |
| virtual void | SetLabelColor (Color_t color=1, Option_t *axis="X") |
| Set axis labels color. More... | |
| virtual void | SetLabelFont (Style_t font=62, Option_t *axis="X") |
| Set font number used to draw axis labels. More... | |
| virtual void | SetLabelOffset (Float_t offset=0.005, Option_t *axis="X") |
| Set offset between axis and axis' labels. More... | |
| virtual void | SetLabelSize (Float_t size=0.02, Option_t *axis="X") |
| Set size of axis' labels. More... | |
| virtual void | SetMaximum (Double_t maximum=-1111) |
| virtual void | SetMinimum (Double_t minimum=-1111) |
| virtual void | SetName (const char *name) |
| Change the name of this histogram. More... | |
| virtual void | SetNameTitle (const char *name, const char *title) |
| Change the name and title of this histogram. More... | |
| virtual void | SetNdivisions (Int_t n=510, Option_t *axis="X") |
| Set the number of divisions to draw an axis. More... | |
| virtual void | SetNormFactor (Double_t factor=1) |
| virtual void | SetStats (Bool_t stats=kTRUE) |
| Set statistics option on/off. More... | |
| virtual void | SetOption (Option_t *option=" ") |
| virtual void | SetTickLength (Float_t length=0.02, Option_t *axis="X") |
| Set the axis' tick marks length. More... | |
| virtual void | SetTitleFont (Style_t font=62, Option_t *axis="X") |
| The the axis' title font. More... | |
| virtual void | SetTitleOffset (Float_t offset=1, Option_t *axis="X") |
| Specify a parameter offset to control the distance between the axis and the axis' title. More... | |
| virtual void | SetTitleSize (Float_t size=0.02, Option_t *axis="X") |
| The the axis' title size. More... | |
| virtual void | SetTitle (const char *title) |
| Change (i.e. More... | |
| virtual void | SetXTitle (const char *title) |
| virtual void | SetYTitle (const char *title) |
| virtual void | SetZTitle (const char *title) |
| virtual void | Sumw2 (Bool_t flag=kTRUE) |
| Create structure to store sum of squares of weights. More... | |
| void | UseCurrentStyle () |
| Copy current attributes from/to current style. More... | |
| virtual Double_t | GetCellContent (Int_t binx, Int_t biny) const |
| virtual Double_t | GetCellError (Int_t binx, Int_t biny) const |
| virtual void | RebinAxis (Double_t x, TAxis *axis) |
| virtual void | SetCellContent (Int_t binx, Int_t biny, Double_t content) |
| virtual void | SetCellError (Int_t binx, Int_t biny, Double_t content) |
| virtual ClassDef(TH1, 7) protected void | UpdateBinContent (Int_t bin, Double_t content) |
| raw update of bin content on internal data structure see convention for numbering bins in TH1::GetBin More... | |
| virtual Double_t | GetBinErrorSqUnchecked (Int_t bin) const |
| Public Member Functions inherited from TNamed | |
| TNamed () | |
| TNamed (const char *name, const char *title) | |
| TNamed (const TString &name, const TString &title) | |
| TNamed (const TNamed &named) | |
| TNamed & | operator= (const TNamed &rhs) |
| TNamed assignment operator. More... | |
| virtual | ~TNamed () |
| virtual void | Clear (Option_t *option="") |
| Set name and title to empty strings (""). More... | |
| virtual Int_t | Compare (const TObject *obj) const |
| Compare two TNamed objects. More... | |
| virtual void | FillBuffer (char *&buffer) |
| Encode TNamed into output buffer. More... | |
| virtual const char * | GetName () const |
| Returns name of object. More... | |
| virtual const char * | GetTitle () const |
| Returns title of object. More... | |
| virtual ULong_t | Hash () const |
| Return hash value for this object. More... | |
| virtual Bool_t | IsSortable () const |
| virtual void | ls (Option_t *option="") const |
| List TNamed name and title. More... | |
| virtual Int_t | Sizeof () const |
| Return size of the TNamed part of the TObject. More... | |
| Public Member Functions inherited from TObject | |
| TObject () | |
| TObject (const TObject &object) | |
| TObject copy ctor. More... | |
| TObject & | operator= (const TObject &rhs) |
| TObject assignment operator. More... | |
| virtual | ~TObject () |
| TObject destructor. More... | |
| virtual void | AppendPad (Option_t *option="") |
| Append graphics object to current pad. More... | |
| virtual const char * | ClassName () const |
| Returns name of class to which the object belongs. More... | |
| virtual void | Delete (Option_t *option="") |
| Delete this object. More... | |
| virtual void | DrawClass () const |
| Draw class inheritance tree of the class to which this object belongs. More... | |
| virtual TObject * | DrawClone (Option_t *option="") const |
| Draw a clone of this object in the current pad. More... | |
| virtual void | Dump () const |
| Dump contents of object on stdout. More... | |
| virtual void | Execute (const char *method, const char *params, Int_t *error=0) |
| Execute method on this object with the given parameter string, e.g. More... | |
| virtual void | Execute (TMethod *method, TObjArray *params, Int_t *error=0) |
| Execute method on this object with parameters stored in the TObjArray. More... | |
| virtual Option_t * | GetDrawOption () const |
| Get option used by the graphics system to draw this object. More... | |
| virtual UInt_t | GetUniqueID () const |
| Return the unique object id. More... | |
| virtual const char * | GetIconName () const |
| Returns mime type name of object. More... | |
| virtual Bool_t | HandleTimer (TTimer *timer) |
| Execute action in response of a timer timing out. More... | |
| virtual Bool_t | InheritsFrom (const char *classname) const |
| Returns kTRUE if object inherits from class "classname". More... | |
| virtual Bool_t | InheritsFrom (const TClass *cl) const |
| Returns kTRUE if object inherits from TClass cl. More... | |
| virtual void | Inspect () const |
| Dump contents of this object in a graphics canvas. More... | |
| virtual Bool_t | IsFolder () const |
| Returns kTRUE in case object contains browsable objects (like containers or lists of other objects). More... | |
| virtual Bool_t | IsEqual (const TObject *obj) const |
| Default equal comparison (objects are equal if they have the same address in memory). More... | |
| Bool_t | IsOnHeap () const |
| Bool_t | IsZombie () const |
| virtual Bool_t | Notify () |
| This method must be overridden to handle object notification. More... | |
| virtual void | Pop () |
| Pop on object drawn in a pad to the top of the display list. More... | |
| virtual Int_t | Read (const char *name) |
| Read contents of object with specified name from the current directory. More... | |
| virtual void | SaveAs (const char *filename="", Option_t *option="") const |
| Save this object in the file specified by filename. More... | |
| virtual void | SetDrawOption (Option_t *option="") |
| Set drawing option for object. More... | |
| virtual void | SetUniqueID (UInt_t uid) |
| Set the unique object id. More... | |
| virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) |
| Write this object to the current directory. More... | |
| virtual Int_t | Write (const char *name=0, Int_t option=0, Int_t bufsize=0) const |
| Write this object to the current directory. More... | |
| void * | operator new (size_t sz) |
| void * | operator new[] (size_t sz) |
| void * | operator new (size_t sz, void *vp) |
| void * | operator new[] (size_t sz, void *vp) |
| void | operator delete (void *ptr) |
| Operator delete. More... | |
| void | operator delete[] (void *ptr) |
| Operator delete []. More... | |
| void | SetBit (UInt_t f, Bool_t set) |
| Set or unset the user status bits as specified in f. More... | |
| void | SetBit (UInt_t f) |
| void | ResetBit (UInt_t f) |
| Bool_t | TestBit (UInt_t f) const |
| Int_t | TestBits (UInt_t f) const |
| void | InvertBit (UInt_t f) |
| virtual void | Info (const char *method, const char *msgfmt,...) const |
| Issue info message. More... | |
| virtual void | Warning (const char *method, const char *msgfmt,...) const |
| Issue warning message. More... | |
| virtual void | Error (const char *method, const char *msgfmt,...) const |
| Issue error message. More... | |
| virtual void | SysError (const char *method, const char *msgfmt,...) const |
| Issue system error message. More... | |
| virtual void | Fatal (const char *method, const char *msgfmt,...) const |
| Issue fatal error message. More... | |
| void | AbstractMethod (const char *method) const |
| Use this method to implement an "abstract" method that you don't want to leave purely abstract. More... | |
| void | MayNotUse (const char *method) const |
| Use this method to signal that a method (defined in a base class) may not be called in a derived class (in principle against good design since a child class should not provide less functionality than its parent, however, sometimes it is necessary). More... | |
| void | Obsolete (const char *method, const char *asOfVers, const char *removedFromVers) const |
| Use this method to declare a method obsolete. More... | |
| Public Member Functions inherited from TAttLine | |
| TAttLine () | |
| AttLine default constructor. More... | |
| TAttLine (Color_t lcolor, Style_t lstyle, Width_t lwidth) | |
| AttLine normal constructor. More... | |
| virtual | ~TAttLine () |
| AttLine destructor. More... | |
| void | Copy (TAttLine &attline) const |
| Copy this line attributes to a new TAttLine. More... | |
| Int_t | DistancetoLine (Int_t px, Int_t py, Double_t xp1, Double_t yp1, Double_t xp2, Double_t yp2) |
| Compute distance from point px,py to a line. More... | |
| virtual Color_t | GetLineColor () const |
| virtual Style_t | GetLineStyle () const |
| virtual Width_t | GetLineWidth () const |
| virtual void | Modify () |
| Change current line attributes if necessary. More... | |
| virtual void | ResetAttLine (Option_t *option="") |
| Reset this line attributes to default values. More... | |
| virtual void | SaveLineAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t widdef=1) |
| Save line attributes as C++ statement(s) on output stream out. More... | |
| virtual void | SetLineAttributes () |
| Invoke the DialogCanvas Line attributes. More... | |
| virtual void | SetLineColor (Color_t lcolor) |
| virtual void | SetLineColorAlpha (Color_t lcolor, Float_t lalpha) |
| Set a transparent line color. More... | |
| virtual void | SetLineStyle (Style_t lstyle) |
| virtual void | SetLineWidth (Width_t lwidth) |
| ClassDef (TAttLine, 2) | |
| Public Member Functions inherited from TAttFill | |
| TAttFill () | |
| TAttFill (Color_t fcolor, Style_t fstyle) | |
| AttFill normal constructor. More... | |
| virtual | ~TAttFill () |
| AttFill destructor. More... | |
| void | Copy (TAttFill &attfill) const |
| Copy this fill attributes to a new TAttFill. More... | |
| virtual Color_t | GetFillColor () const |
| virtual Style_t | GetFillStyle () const |
| virtual Bool_t | IsTransparent () const |
| virtual void | Modify () |
| Change current fill area attributes if necessary. More... | |
| virtual void | ResetAttFill (Option_t *option="") |
| Reset this fill attributes to default values. More... | |
| virtual void | SaveFillAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1001) |
| Save fill attributes as C++ statement(s) on output stream out. More... | |
| virtual void | SetFillAttributes () |
| Invoke the DialogCanvas Fill attributes. More... | |
| virtual void | SetFillColor (Color_t fcolor) |
| virtual void | SetFillColorAlpha (Color_t fcolor, Float_t falpha) |
| Set a transparent fill color. More... | |
| virtual void | SetFillStyle (Style_t fstyle) |
| Public Member Functions inherited from TAttMarker | |
| TAttMarker () | |
| TAttMarker (Color_t color, Style_t style, Size_t msize) | |
| TAttMarker normal constructor. More... | |
| virtual | ~TAttMarker () |
| TAttMarker destructor. More... | |
| void | Copy (TAttMarker &attmarker) const |
| Copy this marker attributes to a new TAttMarker. More... | |
| virtual Color_t | GetMarkerColor () const |
| virtual Style_t | GetMarkerStyle () const |
| virtual Size_t | GetMarkerSize () const |
| virtual void | Modify () |
| Change current marker attributes if necessary. More... | |
| virtual void | ResetAttMarker (Option_t *toption="") |
| Reset this marker attributes to the default values. More... | |
| virtual void | SaveMarkerAttributes (std::ostream &out, const char *name, Int_t coldef=1, Int_t stydef=1, Int_t sizdef=1) |
| Save line attributes as C++ statement(s) on output stream out. More... | |
| virtual void | SetMarkerAttributes () |
| Invoke the DialogCanvas Marker attributes. More... | |
| virtual void | SetMarkerColor (Color_t mcolor=1) |
| virtual void | SetMarkerColorAlpha (Color_t mcolor, Float_t malpha) |
| Set a transparent marker color. More... | |
| virtual void | SetMarkerStyle (Style_t mstyle=1) |
| virtual void | SetMarkerSize (Size_t msize=1) |
| ClassDef (TAttMarker, 2) | |
Protected Member Functions | |
| TH2 () | |
| TH2 (const char *name, const char *title, Int_t nbinsx, Double_t xlow, Double_t xup, Int_t nbinsy, Double_t ylow, Double_t yup) | |
| See comments in the TH1 base class constructors. More... | |
| TH2 (const char *name, const char *title, Int_t nbinsx, const Double_t *xbins, Int_t nbinsy, Double_t ylow, Double_t yup) | |
| See comments in the TH1 base class constructors. More... | |
| TH2 (const char *name, const char *title, Int_t nbinsx, Double_t xlow, Double_t xup, Int_t nbinsy, const Double_t *ybins) | |
| See comments in the TH1 base class constructors. More... | |
| TH2 (const char *name, const char *title, Int_t nbinsx, const Double_t *xbins, Int_t nbinsy, const Double_t *ybins) | |
| See comments in the TH1 base class constructors. More... | |
| TH2 (const char *name, const char *title, Int_t nbinsx, const Float_t *xbins, Int_t nbinsy, const Float_t *ybins) | |
| See comments in the TH1 base class constructors. More... | |
| virtual Int_t | BufferFill (Double_t x, Double_t y, Double_t w) |
| accumulate arguments in buffer. More... | |
| virtual TH1D * | DoProjection (bool onX, const char *name, Int_t firstbin, Int_t lastbin, Option_t *option) const |
| Internal (protected) method for performing projection on the X or Y axis called by ProjectionX or ProjectionY. More... | |
| virtual TProfile * | DoProfile (bool onX, const char *name, Int_t firstbin, Int_t lastbin, Option_t *option) const |
| virtual TH1D * | DoQuantiles (bool onX, const char *name, Double_t prob) const |
| Implementation of quantiles for x or y. More... | |
| virtual void | DoFitSlices (bool onX, TF1 *f1, Int_t firstbin, Int_t lastbin, Int_t cut, Option_t *option, TObjArray *arr) |
| Int_t | BufferFill (Double_t, Double_t) |
| accumulate arguments in buffer. More... | |
| Int_t | Fill (Double_t) |
| Invalid Fill method. More... | |
| Int_t | Fill (const char *, Double_t) |
| Increment bin with namex with a weight w. More... | |
| Protected Member Functions inherited from TH1 | |
| TH1 () | |
| TH1 (const char *name, const char *title, Int_t nbinsx, Double_t xlow, Double_t xup) | |
| Normal constructor for fix bin size histograms. More... | |
| TH1 (const char *name, const char *title, Int_t nbinsx, const Float_t *xbins) | |
| Normal constructor for variable bin size histograms. More... | |
| TH1 (const char *name, const char *title, Int_t nbinsx, const Double_t *xbins) | |
| Normal constructor for variable bin size histograms. More... | |
| virtual Bool_t | FindNewAxisLimits (const TAxis *axis, const Double_t point, Double_t &newMin, Double_t &newMax) |
| finds new limits for the axis so that point is within the range and the limits are compatible with the previous ones (see TH1::Merge). More... | |
| virtual void | SavePrimitiveHelp (std::ostream &out, const char *hname, Option_t *option="") |
| helper function for the SavePrimitive functions from TH1 or classes derived from TH1, eg TProfile, TProfile2D. More... | |
| virtual Double_t | DoIntegral (Int_t ix1, Int_t ix2, Int_t iy1, Int_t iy2, Int_t iz1, Int_t iz2, Double_t &err, Option_t *opt, Bool_t doerr=kFALSE) const |
| internal function compute integral and optionally the error between the limits specified by the bin number values working for all histograms (1D, 2D and 3D) More... | |
| virtual void | DoFillN (Int_t ntimes, const Double_t *x, const Double_t *w, Int_t stride=1) |
| internal method to fill histogram content from a vector called directly by TH1::BufferEmpty More... | |
| Protected Member Functions inherited from TObject | |
| void | MakeZombie () |
| virtual void | DoError (int level, const char *location, const char *fmt, va_list va) const |
| Interface to ErrorHandler (protected). More... | |
Private Member Functions | |
| TH2 (const TH2 &) | |
| Copy constructor. More... | |
| TH2 & | operator= (const TH2 &) |
Additional Inherited Members | |
| Public Types inherited from TH1 | |
| enum | EBinErrorOpt { kNormal = 0, kPoisson = 1, kPoisson2 = 2 } |
| enum | { kNoAxis = 0, kXaxis = BIT(0), kYaxis = BIT(1), kZaxis = BIT(2), kAllAxes = kXaxis | kYaxis | kZaxis } |
| enum | { kNoStats = BIT(9), kUserContour = BIT(10), kLogX = BIT(15), kIsZoomed = BIT(16), kNoTitle = BIT(17), kIsAverage = BIT(18), kIsNotW = BIT(19) } |
| enum | { kNstat = 13 } |
| Public Types inherited from TObject | |
| enum | EStatusBits { kCanDelete = BIT(0), kMustCleanup = BIT(3), kObjInCanvas = BIT(3), kIsReferenced = BIT(4), kHasUUID = BIT(5), kCannotPick = BIT(6), kNoContextMenu = BIT(8), kInvalidObject = BIT(13) } |
| enum | { kIsOnHeap = 0x01000000, kNotDeleted = 0x02000000, kZombie = 0x04000000, kBitMask = 0x00ffffff } |
| enum | { kSingleKey = BIT(0), kOverwrite = BIT(1), kWriteDelete = BIT(2) } |
| Static Public Member Functions inherited from TH1 | |
| static Int_t | FitOptionsMake (Option_t *option, Foption_t &Foption) |
| flag to call TH1::Sumw2 automatically at histogram creation time More... | |
| static void | AddDirectory (Bool_t add=kTRUE) |
| Sets the flag controlling the automatic add of histograms in memory. More... | |
| static Bool_t | AddDirectoryStatus () |
| static function: cannot be inlined on Windows/NT More... | |
| static Int_t | GetDefaultBufferSize () |
| static function return the default buffer size for automatic histograms the parameter fgBufferSize may be changed via SetDefaultBufferSize More... | |
| static Bool_t | GetDefaultSumw2 () |
| return kTRUE if TH1::Sumw2 must be called when creating new histograms. More... | |
| static void | SetDefaultBufferSize (Int_t buffersize=1000) |
| static function to set the default buffer size for automatic histograms. More... | |
| static void | SetDefaultSumw2 (Bool_t sumw2=kTRUE) |
| static function. More... | |
| static void | SmoothArray (Int_t NN, Double_t *XX, Int_t ntimes=1) |
| smooth array xx, translation of Hbook routine hsmoof.F based on algorithm 353QH twice presented by J. More... | |
| static void | StatOverflows (Bool_t flag=kTRUE) |
| if flag=kTRUE, underflows and overflows are used by the Fill functions in the computation of statistics (mean value, StdDev). More... | |
| static TH1 * | TransformHisto (TVirtualFFT *fft, TH1 *h_output, Option_t *option) |
| For a given transform (first parameter), fills the histogram (second parameter) with the transform output data, specified in the third parameter If the 2nd parameter h_output is empty, a new histogram (TH1D or TH2D) is created and the user is responsible for deleting it. More... | |
| Static Public Member Functions inherited from TObject | |
| static Long_t | GetDtorOnly () |
| Return destructor only flag. More... | |
| static void | SetDtorOnly (void *obj) |
| Set destructor only flag. More... | |
| static Bool_t | GetObjectStat () |
| Get status of object stat flag. More... | |
| static void | SetObjectStat (Bool_t stat) |
| Turn on/off tracking of objects in the TObjectTable. More... | |
| Static Protected Member Functions inherited from TH1 | |
| static Bool_t | RecomputeAxisLimits (TAxis &destAxis, const TAxis &anAxis) |
| Finds new limits for the axis for the Merge function. More... | |
| static Bool_t | SameLimitsAndNBins (const TAxis &axis1, const TAxis &axis2) |
| Same limits and bins. More... | |
| static bool | CheckAxisLimits (const TAxis *a1, const TAxis *a2) |
| Check that the axis limits of the histograms are the same if a first and last bin is passed the axis is compared between the given range. More... | |
| static bool | CheckBinLimits (const TAxis *a1, const TAxis *a2) |
| static bool | CheckBinLabels (const TAxis *a1, const TAxis *a2) |
| check that axis have same labels More... | |
| static bool | CheckEqualAxes (const TAxis *a1, const TAxis *a2) |
| Check that the axis are the same. More... | |
| static bool | CheckConsistentSubAxes (const TAxis *a1, Int_t firstBin1, Int_t lastBin1, const TAxis *a2, Int_t firstBin2=0, Int_t lastBin2=0) |
| Check that two sub axis are the same the limits are defined by first bin and last bin N.B. More... | |
| static bool | CheckConsistency (const TH1 *h1, const TH1 *h2) |
| Check histogram compatibility. More... | |
| Static Protected Attributes inherited from TH1 | |
| static Int_t | fgBufferSize = 1000 |
| static Bool_t | fgAddDirectory = kTRUE |
| default buffer size for automatic histograms More... | |
| static Bool_t | fgStatOverflows = kFALSE |
| flag to add histograms to the directory More... | |
| static Bool_t | fgDefaultSumw2 = kFALSE |
| flag to use under/overflows in statistics More... | |
#include <TH2.h>
Inheritance diagram for TH2: Collaboration diagram for TH2:
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protected |
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private |
Fill histogram with all entries in the buffer.
action = -1 histogram is reset and refilled from the buffer (called by THistPainter::Paint) action = 0 histogram is filled from the buffer action = 1 histogram is filled and buffer is deleted The buffer is automatically deleted when the number of entries in the buffer is greater than the number of entries in the histogram
Reimplemented from TH1.
Reimplemented in TProfile2D.
Definition at line 172 of file TH2.cxx.
Referenced by BufferFill(), and Merge().
accumulate arguments in buffer.
When buffer is full, empty the buffer fBuffer[0] = number of entries in buffer fBuffer[1] = w of first entry fBuffer[2] = x of first entry fBuffer[3] = y of first entry
Reimplemented in TProfile2D.
accumulate arguments in buffer.
When buffer is full, empty the buffer fBuffer[0] = number of entries in buffer fBuffer[1] = w of first entry fBuffer[2] = x of first entry
Reimplemented from TH1.
Reimplemented in TProfile2D.
Copy.
Reimplemented from TH1.
Reimplemented in TH2D, TH2F, TH2I, TH2S, TH2C, and TProfile2D.
Definition at line 272 of file TH2.cxx.
Referenced by TH2C::Copy(), TH2S::Copy(), TH2I::Copy(), TH2F::Copy(), TH2D::Copy(), and Merge().
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Definition at line 731 of file TH2.cxx.
Referenced by FitSlicesX(), and FitSlicesY().
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Reimplemented in TProfile2D.
Definition at line 1970 of file TH2.cxx.
Referenced by ProfileX(), and ProfileY().
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Internal (protected) method for performing projection on the X or Y axis called by ProjectionX or ProjectionY.
Definition at line 2245 of file TH2.cxx.
Referenced by DoQuantiles(), ProjectionX(), and ProjectionY().
Implementation of quantiles for x or y.
Definition at line 2600 of file TH2.cxx.
Referenced by QuantilesX(), and QuantilesY().
Invalid Fill method.
Reimplemented from TH1.
Reimplemented in TH2Poly.
Definition at line 285 of file TH2.cxx.
Referenced by BufferEmpty(), BufferFill(), TGeoChecker::CheckBoundaryErrors(), TGeoChecker::CheckGeometryFull(), THbookFile::Convert2D(), RooFitResult::correlationHist(), RooDataSet::createHistogram(), TF2::CreateHistogram(), TMVA::ResultsRegression::DeviationAsAFunctionOf(), TMultiLayerPerceptron::DrawResult(), RooNumConvolution::evaluate(), TProfile2D::Fill(), TMVA::RuleFit::FillCorr(), TMVA::RuleFit::FillCut(), TProofPerfAnalysis::FillFileDist(), TestDialog::FillHistos(), TMVA::RuleFit::FillLin(), TProofBenchRunCPU::FillPerfStatPerfPlots(), TProofBenchRunDataRead::FillPerfStatProfiles(), FillRandom(), fit2DHist(), TH3::FitSlicesZ(), fitSparse2D(), TGraph2D::GetHistogram(), TGeoChecker::LegoPlot(), Merge(), TMVA::MethodBoost::MonitorBoost(), TPerfStats::PacketEvent(), piRandom(), TSelHist::Process(), TGraph2D::Project(), TFITSHDU::ReadAsHistogram(), TSelectorDraw::TakeAction(), TSelectorDraw::TakeEstimate(), testHisto2DFit(), testkdTreeBinning(), testQuasiRandom(), TMVA::MethodBase::TestRegression(), testSphere(), testUnuran(), and unuranGraf().
Increment bin with namex with a weight w.
if x is less than the low-edge of the first bin, the Underflow bin is incremented if x is greater than the upper edge of last bin, the Overflow bin is incremented
If the weight is not equal to 1, the storage of the sum of squares of weights is automatically triggered and the sum of the squares of weights is incremented by w^2 in the bin corresponding to x.
The function returns the corresponding bin number which has its content incremented by w
Reimplemented from TH1.
Reimplemented in TH2Poly.
Definition at line 64 of file TH2.h.
Referenced by Fill().
Increment cell defined by x,y by 1.
if x or/and y is less than the low-edge of the corresponding axis first bin, the Underflow cell is incremented. if x or/and y is greater than the upper edge of corresponding axis last bin, the Overflow cell is incremented.
If the storage of the sum of squares of weights has been triggered, via the function Sumw2, then the sum of the squares of weights is incremented by 1 in the cell corresponding to x,y.
The function returns the corresponding global bin number which has its content incremented by 1
Reimplemented from TH1.
Reimplemented in TH2Poly, and TProfile2D.
Increment cell defined by x,y by a weight w.
if x or/and y is less than the low-edge of the corresponding axis first bin, the Underflow cell is incremented. if x or/and y is greater than the upper edge of corresponding axis last bin, the Overflow cell is incremented.
If the weight is not equal to 1, the storage of the sum of squares of weights is automatically triggered and the sum of the squares of weights is incremented by w^2 in the bin corresponding to x,y
The function returns the corresponding global bin number which has its content incremented by w
Reimplemented in TProfile2D, and TH2Poly.
Increment cell defined by x,namey by a weight w.
if x or/and y is less than the low-edge of the corresponding axis first bin, the Underflow cell is incremented. if x or/and y is greater than the upper edge of corresponding axis last bin, the Overflow cell is incremented.
If the weight is not equal to 1, the storage of the sum of squares of weights is automatically triggered and the sum of the squares of weights is incremented by w^2 in the bin corresponding to x,y.
The function returns the corresponding global bin number which has its content incremented by w
Reimplemented in TProfile2D, and TH2Poly.
Increment cell defined by namex,y by a weight w.
if x or/and y is less than the low-edge of the corresponding axis first bin, the Underflow cell is incremented. if x or/and y is greater than the upper edge of corresponding axis last bin, the Overflow cell is incremented.
If the weight is not equal to 1, the storage of the sum of squares of weights is automatically triggered and the sum of the squares of weights is incremented by w^2 in the bin corresponding to namex,y
The function returns the corresponding global bin number which has its content incremented by w
Reimplemented in TProfile2D, and TH2Poly.
Increment cell defined by namex,namey by a weight w.
if x or/and y is less than the low-edge of the corresponding axis first bin, the Underflow cell is incremented. if x or/and y is greater than the upper edge of corresponding axis last bin, the Overflow cell is incremented.
If the weight is not equal to 1, the storage of the sum of squares of weights is automatically triggered and the sum of the squares of weights is incremented by w^2 in the bin corresponding to namex,namey
The function returns the corresponding global bin number which has its content incremented by w
Reimplemented in TProfile2D, and TH2Poly.
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Fill a 2-D histogram with an array of values and weights.
ntimes: number of entries in arrays x and w (array size must be ntimes*stride) x: array of x values to be histogrammed y: array of y values to be histogrammed w: array of weights stride: step size through arrays x, y and w
If the weight is not equal to 1, the storage of the sum of squares of weights is automatically triggered and the sum of the squares of weights is incremented by w[i]^2 in the bin corresponding to x[i],y[i]. If w is NULL each entry is assumed a weight=1
NB: function only valid for a TH2x object
Reimplemented from TH1.
Reimplemented in TH2Poly.
Fill histogram following distribution in function fname.
The distribution contained in the function fname (TF2) is integrated over the channel contents. It is normalized to 1. Getting one random number implies:
One can also call TF2::GetRandom2 to get a random variate from a function.
Reimplemented from TH1.
Definition at line 590 of file TH2.cxx.
Referenced by TwoDimensions().
Fill histogram following distribution in histogram h.
The distribution contained in the histogram h (TH2) is integrated over the channel contents. It is normalized to 1. Getting one random number implies:
Reimplemented from TH1.
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Project slices along X in case of a 2-D histogram, then fit each slice with function f1 and make a histogram for each fit parameter Only bins along Y between firstybin and lastybin are considered.
By default (firstybin == 0, lastybin == -1), all bins in y including over- and underflows are taken into account. If f1=0, a gaussian is assumed Before invoking this function, one can set a subrange to be fitted along X via f1->SetRange(xmin,xmax) The argument option (default="QNR") can be used to change the fit options. "Q" means Quiet mode "N" means do not show the result of the fit "R" means fit the function in the specified function range "G2" merge 2 consecutive bins along X "G3" merge 3 consecutive bins along X "G4" merge 4 consecutive bins along X "G5" merge 5 consecutive bins along X "S" sliding merge: merge n consecutive bins along X accordingly to what Gn is given. It makes sense when used together with a Gn option
The generated histograms are returned by adding them to arr, if arr is not NULL. arr's SetOwner() is called, to signal that it is the user's respponsability to delete the histograms, possibly by deleting the arrary. TObjArray aSlices; h2->FitSlicesX(func, 0, -1, 0, "QNR", &aSlices); will already delete the histograms once aSlice goes out of scope. aSlices will contain the histogram for the i-th parameter of the fit function at aSlices[i]; aSlices[n] (n being the number of parameters) contains the chi2 distribution of the fits.
If arr is NULL, the generated histograms are added to the list of objects in the current directory. It is the user's responsability to delete these histograms.
Example: Assume a 2-d histogram h2 Root > h2->FitSlicesX(); produces 4 TH1D histograms with h2_0 containing parameter 0(Constant) for a Gaus fit of each bin in Y projected along X with h2_1 containing parameter 1(Mean) for a gaus fit with h2_2 containing parameter 2(StdDev) for a gaus fit with h2_chi2 containing the chisquare/number of degrees of freedom for a gaus fit
Root > h2->FitSlicesX(0,15,22,10); same as above, but only for bins 15 to 22 along Y and only for bins in Y for which the corresponding projection along X has more than cut bins filled.
NOTE: To access the generated histograms in the current directory, do eg: TH1D h2_1 = (TH1D)gDirectory->Get("h2_1");
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Project slices along Y in case of a 2-D histogram, then fit each slice with function f1 and make a histogram for each fit parameter Only bins along X between firstxbin and lastxbin are considered.
By default (firstxbin == 0, lastxbin == -1), all bins in x including over- and underflows are taken into account. If f1=0, a gaussian is assumed Before invoking this function, one can set a subrange to be fitted along Y via f1->SetRange(ymin,ymax) The argument option (default="QNR") can be used to change the fit options. "Q" means Quiet mode "N" means do not show the result of the fit "R" means fit the function in the specified function range "G2" merge 2 consecutive bins along Y "G3" merge 3 consecutive bins along Y "G4" merge 4 consecutive bins along Y "G5" merge 5 consecutive bins along Y "S" sliding merge: merge n consecutive bins along Y accordingly to what Gn is given. It makes sense when used together with a Gn option
The generated histograms are returned by adding them to arr, if arr is not NULL. arr's SetOwner() is called, to signal that it is the user's respponsability to delete the histograms, possibly by deleting the arrary. TObjArray aSlices; h2->FitSlicesY(func, 0, -1, 0, "QNR", &aSlices); will already delete the histograms once aSlice goes out of scope. aSlices will contain the histogram for the i-th parameter of the fit function at aSlices[i]; aSlices[n] (n being the number of parameters) contains the chi2 distribution of the fits.
If arr is NULL, the generated histograms are added to the list of objects in the current directory. It is the user's responsability to delete these histograms.
Example: Assume a 2-d histogram h2 Root > h2->FitSlicesY(); produces 4 TH1D histograms with h2_0 containing parameter 0(Constant) for a Gaus fit of each bin in X projected along Y with h2_1 containing parameter 1(Mean) for a gaus fit with h2_2 containing parameter 2(StdDev) for a gaus fit with h2_chi2 containing the chisquare/number of degrees of freedom for a gaus fit
Root > h2->FitSlicesY(0,15,22,10); same as above, but only for bins 15 to 22 along X and only for bins in X for which the corresponding projection along Y has more than cut bins filled.
NOTE: To access the generated histograms in the current directory, do eg: TH1D h2_1 = (TH1D)gDirectory->Get("h2_1");
A complete example of this function is given in begin_html tutorial:fitslicesy.C end_html with the following output: Begin_Html
Return Global bin number corresponding to binx,y,z.
2-D and 3-D histograms are represented with a one dimensional structure. This has the advantage that all existing functions, such as GetBinContent, GetBinError, GetBinFunction work for all dimensions.
In case of a TH1x, returns binx directly. see TH1::GetBinXYZ for the inverse transformation.
Convention for numbering bins
For all histogram types: nbins, xlow, xup bin = 0; underflow bin bin = 1; first bin with low-edge xlow INCLUDED bin = nbins; last bin with upper-edge xup EXCLUDED bin = nbins+1; overflow bin In case of 2-D or 3-D histograms, a "global bin" number is defined. For example, assuming a 3-D histogram with binx,biny,binz, the function
Int_t bin = h->GetBin(binx,biny,binz);
returns a global/linearized bin number. This global bin is useful to access the bin information independently of the dimension.
Reimplemented from TH1.
Definition at line 956 of file TH2.cxx.
Referenced by TEveCaloDataHist::DataChanged(), DoProfile(), TProfile2D::Fill(), TMVA::RuleFit::FillCut(), GetBinContent(), TProfile2D::GetBinContent(), TProfile2D::GetBinError(), GetBinErrorLow(), GetBinErrorUp(), TEveCaloDataHist::GetCellList(), GetStats(), TProfile2D::GetStats(), Interpolate(), TProfile2D::ProjectionXY(), SetBinContent(), and Smooth().
Return content of bin number bin.
Implemented in TH1C,S,F,D
Convention for numbering bins
For all histogram types: nbins, xlow, xup bin = 0; underflow bin bin = 1; first bin with low-edge xlow INCLUDED bin = nbins; last bin with upper-edge xup EXCLUDED bin = nbins+1; overflow bin In case of 2-D or 3-D histograms, a "global bin" number is defined. For example, assuming a 3-D histogram with binx,biny,binz, the function Int_t bin = h->GetBin(binx,biny,binz); returns a global/linearized bin number. This global bin is useful to access the bin information independently of the dimension.
Reimplemented from TH1.
Reimplemented in TProfile2D, and TH2Poly.
Definition at line 90 of file TH2.h.
Referenced by TUnfoldSys::AddSysError(), TSVDUnfold::ComputeChiSquared(), TMVA::DataSetInfo::CreateCorrelationMatrixHist(), TEveCaloDataHist::DataChanged(), DoProjection(), TMVA::draw_layer(), TMVA::draw_network(), TUnfold::ErrorMatrixToHist(), FindFirstBinAbove(), FindLastBinAbove(), TSVDUnfold::GetAdetCovMatrix(), GetBinWithContent2(), TEveCaloDataHist::GetCellData(), TEveCaloDataHist::GetCellList(), TMVA::Tools::GetMutualInformation(), TUnfold::GetRhoIJ(), TUnfoldDensity::GetRhoIJtotal(), TSVDUnfold::GetUnfoldCovMatrix(), TMVA::Tools::GetYMean_binX(), TSVDUnfold::H2M(), TCutG::IntegralHist(), TMVA::mvaweights(), TMVA::PDEFoamDiscriminant::Project2(), TMVA::PDEFoam::Project2(), TUnfold::SetInput(), TSpectrum2Painter::ShadowColorCalculation(), testQuasiRandom(), TGraph2D::TGraph2D(), TSpectrum2Painter::Transform(), TMVA::Tools::TransposeHist(), TUnfold::TUnfold(), and TUnfoldSys::TUnfoldSys().
Reimplemented from TH1.
Reimplemented in TProfile2D, and TH2Poly.
Reimplemented from TH1.
Reimplemented in TProfile2D, and TH2Poly.
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compute first cell (binx,biny) in the range [firstxbin,lastxbin][firstybin,lastybin] for which diff = abs(cell_content-c) <= maxdiff In case several cells in the specified range with diff=0 are found the first cell found is returned in binx,biny.
In case several cells in the specified range satisfy diff <=maxdiff the cell with the smallest difference is returned in binx,biny. In all cases the function returns the smallest difference.
NOTE1: if firstxbin < 0, firstxbin is set to 1 if (lastxbin < firstxbin then lastxbin is set to the number of bins in X ie if firstxbin=1 and lastxbin=0 (default) the search is on all bins in X except for X's under- and overflow bins. if firstybin < 0, firstybin is set to 1 if (lastybin < firstybin then lastybin is set to the number of bins in Y ie if firstybin=1 and lastybin=0 (default) the search is on all bins in Y except for Y's under- and overflow bins. NOTE2: if maxdiff=0 (default), the first cell with content=c is returned.
Return covariance between axis1 and axis2.
Definition at line 1032 of file TH2.cxx.
Referenced by GetCorrelationFactor().
Return 2 random numbers along axis x and y distributed according the cellcontents of a 2-dim histogram return a NaN if the histogram has a bin with negative content.
Definition at line 1064 of file TH2.cxx.
Referenced by FillRandom().
Fill the array stats from the contents of this histogram The array stats must be correctly dimensionned in the calling program.
stats[0] = sumw stats[1] = sumw2 stats[2] = sumwx stats[3] = sumwx2 stats[4] = sumwy stats[5] = sumwy2 stats[6] = sumwxy
If no axis-subranges are specified (via TAxis::SetRange), the array stats is simply a copy of the statistics quantities computed at filling time. If sub-ranges are specified, the function recomputes these quantities from the bin contents in the current axis ranges.
Note that the mean value/StdDev is computed using the bins in the currently defined ranges (see TAxis::SetRange). By default the ranges include all bins from 1 to nbins included, excluding underflows and overflows. To force the underflows and overflows in the computation, one must call the static function TH1::StatOverflows(kTRUE) before filling the histogram.
Reimplemented from TH1.
Reimplemented in TProfile2D.
Definition at line 1115 of file TH2.cxx.
Referenced by DoProjection(), GetCovariance(), Merge(), and TMVA::Tools::TransposeHist().
Return integral of bin contents.
Only bins in the bins range are considered. By default the integral is computed as the sum of bin contents in the range. if option "width" is specified, the integral is the sum of the bin contents multiplied by the bin width in x and in y.
Reimplemented from TH1.
Reimplemented in TH2Poly.
Definition at line 1174 of file TH2.cxx.
Referenced by TMVA::Tools::GetCorrelationRatio(), TMVA::Tools::GetMutualInformation(), TMVA::Tools::GetYMean_binX(), and THistPainter::PaintStat2().
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Return integral of bin contents in range [firstxbin,lastxbin],[firstybin,lastybin] for a 2-D histogram By default the integral is computed as the sum of bin contents in the range.
if option "width" is specified, the integral is the sum of the bin contents multiplied by the bin width in x and in y.
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Return integral of bin contents in range [firstxbin,lastxbin],[firstybin,lastybin] for a 2-D histogram.
Calculates also the integral error using error propagation from the bin errors assumming that all the bins are uncorrelated. By default the integral is computed as the sum of bin contents in the range. if option "width" is specified, the integral is the sum of the bin contents multiplied by the bin width in x and in y.
Statistical test of compatibility in shape between THIS histogram and h2, using Kolmogorov test.
Default: Ignore under- and overflow bins in comparison
option is a character string to specify options "U" include Underflows in test "O" include Overflows "N" include comparison of normalizations "D" Put out a line of "Debug" printout "M" Return the Maximum Kolmogorov distance instead of prob
The returned function value is the probability of test (much less than one means NOT compatible)
The KS test uses the distance between the pseudo-CDF's obtained from the histogram. Since in 2D the order for generating the pseudo-CDF is arbitrary, two pairs of pseudo-CDF are used, one starting from the x axis the other from the y axis and the maximum distance is the average of the two maximum distances obtained.
Code adapted by Rene Brun from original HBOOK routine HDIFF
Reimplemented from TH1.
Definition at line 1330 of file TH2.cxx.
Referenced by testUnuran().
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Add all histograms in the collection to this histogram.
This function computes the min/max for the axes, compute a new number of bins, if necessary, add bin contents, errors and statistics. If overflows are present and limits are different the function will fail. The function returns the total number of entries in the result histogram if the merge is successfull, -1 otherwise.
IMPORTANT remark. The 2 axis x and y may have different number of bins and different limits, BUT the largest bin width must be a multiple of the smallest bin width and the upper limit must also be a multiple of the bin width.
Reimplemented from TH1.
Reimplemented in TProfile2D, and TH2Poly.
| TProfile * TH2::ProfileX | ( | const char * | name = "_pfx", |
| Int_t | firstybin = 1, |
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| Int_t | lastybin = -1, |
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| Option_t * | option = "" |
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| ) | const |
Project a 2-D histogram into a profile histogram along X.
The projection is made from the channels along the Y axis ranging from firstybin to lastybin included. By default, bins 1 to ny are included When all bins are included, the number of entries in the projection is set to the number of entries of the 2-D histogram, otherwise the number of entries is incremented by 1 for all non empty cells.
if option "d" is specified, the profile is drawn in the current pad.
if option "o" original axis range of the target axes will be kept, but only bins inside the selected range will be filled.
The option can also be used to specify the projected profile error type. Values which can be used are 's', 'i', or 'g'. See TProfile::BuildOptions for details
Using a TCutG object, it is possible to select a sub-range of a 2-D histogram. One must create a graphical cut (mouse or C++) and specify the name of the cut between [] in the option. For example, with a TCutG named "cutg", one can call: myhist->ProfileX(" ",firstybin,lastybin,"[cutg]"); To invert the cut, it is enough to put a "-" in front of its name: myhist->ProfileX(" ",firstybin,lastybin,"[-cutg]"); It is possible to apply several cuts ("," means logical AND): myhist->ProfileX(" ",firstybin,lastybin,"[cutg1,cutg2]");
NOTE that if a TProfile named "name" exists in the current directory or pad with a compatible axis the profile is reset and filled again with the projected contents of the TH2. In the case of axis incompatibility an error is reported and a NULL pointer is returned.
NOTE that the X axis attributes of the TH2 are copied to the X axis of the profile.
NOTE that the default under- / overflow behavior differs from what ProjectionX does! Profiles take the bin center into account, so here the under- and overflow bins are ignored by default.
| TProfile * TH2::ProfileY | ( | const char * | name = "_pfy", |
| Int_t | firstxbin = 1, |
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| Int_t | lastxbin = -1, |
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| Option_t * | option = "" |
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| ) | const |
Project a 2-D histogram into a profile histogram along Y.
The projection is made from the channels along the X axis ranging from firstxbin to lastxbin included. By default, bins 1 to nx are included When all bins are included, the number of entries in the projection is set to the number of entries of the 2-D histogram, otherwise the number of entries is incremented by 1 for all non empty cells.
if option "d" is specified, the profile is drawn in the current pad.
if option "o" , the original axis range of the target axis will be kept, but only bins inside the selected range will be filled.
The option can also be used to specify the projected profile error type. Values which can be used are 's', 'i', or 'g'. See TProfile::BuildOptions for details Using a TCutG object, it is possible to select a sub-range of a 2-D histogram.
One must create a graphical cut (mouse or C++) and specify the name of the cut between [] in the option. For example, with a TCutG named "cutg", one can call: myhist->ProfileY(" ",firstybin,lastybin,"[cutg]"); To invert the cut, it is enough to put a "-" in front of its name: myhist->ProfileY(" ",firstybin,lastybin,"[-cutg]"); It is possible to apply several cuts: myhist->ProfileY(" ",firstybin,lastybin,"[cutg1,cutg2]");
NOTE that if a TProfile named "name" exists in the current directory or pad with a compatible axis the profile is reset and filled again with the projected contents of the TH2. In the case of axis incompatibility an error is reported and a NULL pointer is returned.
NOTE that the Y axis attributes of the TH2 are copied to the X axis of the profile.
NOTE that the default under- / overflow behavior differs from what ProjectionX does! Profiles take the bin center into account, so here the under- and overflow bins are ignored by default.
| TH1D * TH2::ProjectionX | ( | const char * | name = "_px", |
| Int_t | firstybin = 0, |
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| Int_t | lastybin = -1, |
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| Option_t * | option = "" |
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| ) | const |
Project a 2-D histogram into a 1-D histogram along X.
The projection is always of the type TH1D. The projection is made from the channels along the Y axis ranging from firstybin to lastybin included. By default, all bins including under- and overflow are included. The number of entries in the projection is estimated from the number of effective entries for all the cells included in the projection.
To exclude the underflow bins in Y, use firstybin=1. To exclude the overflow bins in Y, use lastybin=nx.
if option "e" is specified, the errors are computed. if option "d" is specified, the projection is drawn in the current pad. if option "o" original axis range of the taget axes will be kept, but only bins inside the selected range will be filled.
Using a TCutG object, it is possible to select a sub-range of a 2-D histogram. One must create a graphical cut (mouse or C++) and specify the name of the cut between [] in the option. For example, with a TCutG named "cutg", one can call: myhist->ProjectionX(" ",firstybin,lastybin,"[cutg]"); To invert the cut, it is enough to put a "-" in front of its name: myhist->ProjectionX(" ",firstybin,lastybin,"[-cutg]"); It is possible to apply several cuts: myhist->ProjectionX(" ",firstybin,lastybin,"[cutg1,cutg2]");
NOTE that if a TH1D named "name" exists in the current directory or pad the histogram is reset and filled again with the projected contents of the TH2.
NOTE that the X axis attributes of the TH2 are copied to the X axis of the projection.
Definition at line 2513 of file TH2.cxx.
Referenced by DoFitSlices(), TProfile2D::DoProfile(), THistPainter::PaintCandlePlot(), THistPainter::PaintViolinPlot(), and THStack::THStack().
| TH1D * TH2::ProjectionY | ( | const char * | name = "_py", |
| Int_t | firstxbin = 0, |
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| Int_t | lastxbin = -1, |
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| Option_t * | option = "" |
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| ) | const |
Project a 2-D histogram into a 1-D histogram along Y.
The projection is always of the type TH1D. The projection is made from the channels along the X axis ranging from firstxbin to lastxbin included. By default, all bins including under- and overflow are included. The number of entries in the projection is estimated from the number of effective entries for all the cells included in the projection
To exclude the underflow bins in X, use firstxbin=1. To exclude the oveerflow bins in X, use lastxbin=nx.
if option "e" is specified, the errors are computed. if option "d" is specified, the projection is drawn in the current pad. if option "o" original axis range of the taget axes will be kept, but only bins inside the selected range will be filled.
Using a TCutG object, it is possible to select a sub-range of a 2-D histogram. One must create a graphical cut (mouse or C++) and specify the name of the cut between [] in the option. For example, with a TCutG named "cutg", one can call: myhist->ProjectionY(" ",firstxbin,lastxbin,"[cutg]"); To invert the cut, it is enough to put a "-" in front of its name: myhist->ProjectionY(" ",firstxbin,lastxbin,"[-cutg]"); It is possible to apply several cuts: myhist->ProjectionY(" ",firstxbin,lastxbin,"[cutg1,cutg2]");
NOTE that if a TH1D named "name" exists in the current directory or pad and having a compatible axis, the histogram is reset and filled again with the projected contents of the TH2. In the case of axis incompatibility, an error is reported and a NULL pointer is returned.
NOTE that the Y axis attributes of the TH2 are copied to the X axis of the projection.
Definition at line 2553 of file TH2.cxx.
Referenced by DoFitSlices(), TProfile2D::DoProfile(), TMVA::Tools::GetCorrelationRatio(), TMVA::Tools::GetYMean_binX(), THistPainter::PaintCandlePlot(), THistPainter::PaintViolinPlot(), and THStack::THStack().
Replace current statistics with the values in array stats.
Reimplemented from TH1.
Reimplemented in TProfile2D.
Definition at line 2562 of file TH2.cxx.
Referenced by TH3::DoProject2D(), Merge(), and TMVA::Tools::TransposeHist().
Compute the X distribution of quantiles in the other variable Y name is the name of the returned histogram prob is the probability content for the quantile (0.5 is the default for the median) An approximate error for the quantile is computed assuming that the distribution in the other variable is normal.
Compute the Y distribution of quantiles in the other variable X name is the name of the returned histogram prob is the probability content for the quantile (0.5 is the default for the median) An approximate error for the quantile is computed assuming that the distribution in the other variable is normal.
Rebin this histogram grouping nxgroup/nygroup bins along the xaxis/yaxis together.
if newname is not blank a new temporary histogram hnew is created. else the current histogram is modified (default) The parameter nxgroup/nygroup indicate how many bins along the xaxis/yaxis of this have to me merged into one bin of hnew If the original histogram has errors stored (via Sumw2), the resulting histograms has new errors correctly calculated.
examples: if hpxpy is an existing TH2 histogram with 40 x 40 bins hpxpy->Rebin2D(); // merges two bins along the xaxis and yaxis in one in hpxpy // Carefull: previous contents of hpxpy are lost hpxpy->RebinX(5); //merges five bins along the xaxis in one in hpxpy TH2 *hnew = hpxpy->RebinY(5,"hnew"); // creates a new histogram hnew // merging 5 bins of h1 along the yaxis in one bin
NOTE : If nxgroup/nygroup is not an exact divider of the number of bins, along the xaxis/yaxis the top limit(s) of the rebinned histogram is changed to the upper edge of the xbin=newxbins*nxgroup resp. ybin=newybins*nygroup and the corresponding bins are added to the overflow bin. Statistics will be recomputed from the new bin contents.
Reimplemented in TProfile2D.
Definition at line 1788 of file TH2.cxx.
Referenced by TH2Editor::DoBinMoved(), TH2Editor::DoBinReleased(), RebinX(), RebinY(), and TMVA::rulevisCorr().
Rebin only the X axis see Rebin2D.
Reimplemented from TH1.
Reimplemented in TProfile2D.
Definition at line 1748 of file TH2.cxx.
Referenced by TMVA::Tools::GetCorrelationRatio(), and TMVA::Tools::GetMutualInformation().
Rebin only the Y axis see Rebin2D.
Reimplemented in TProfile2D.
Definition at line 1758 of file TH2.cxx.
Referenced by TMVA::Tools::GetCorrelationRatio(), and TMVA::Tools::GetMutualInformation().
Reset this histogram: contents, errors, etc.
Reimplemented from TH1.
Reimplemented in TH2D, TH2F, TH2I, TH2S, TH2C, TProfile2D, and TH2Poly.
Definition at line 2673 of file TH2.cxx.
Referenced by TProofDrawHist::Begin2D(), BufferEmpty(), BufferFill(), TH2Editor::DoBinMoved(), TH2Editor::DoBinReleased(), TH2Editor::DoCancel(), Merge(), TH2Poly::Reset(), TH2C::Reset(), TH2S::Reset(), TH2I::Reset(), TH2F::Reset(), TH2D::Reset(), TH2Editor::SetModel(), and testUnuran().
Set bin content.
Reimplemented from TH1.
Reimplemented in TH2Poly.
Definition at line 2689 of file TH2.cxx.
Referenced by TMVA::DataSetInfo::CreateCorrelationMatrixHist(), TF2::CreateHistogram(), TH3::DoProject2D(), TUnfold::ErrorMatrixToHist(), TEfficiency::FillHistogram(), fit2DHist(), TH3::FitSlicesZ(), TSVDUnfold::GetAdetCovMatrix(), TUnfold::GetInputInverseEmatrix(), TUnfold::GetL(), TUnfold::GetLsquared(), TUnfold::GetProbabilityMatrix(), TUnfold::GetRhoIFromMatrix(), TUnfold::GetRhoIJ(), TUnfoldDensity::GetRhoIJtotal(), TSVDUnfold::GetUnfoldCovMatrix(), TSVDUnfold::M2H(), TMVA::mvaweights(), TMVA::PDEFoamDiscriminant::Project2(), TMVA::PDEFoam::Project2(), TProfile2D::ProjectionXY(), Smooth(), TH2D::TH2D(), TH2F::TH2F(), and TMVA::Tools::TransposeHist().
Reimplemented from TH1.
Reimplemented in TH2Poly.
Definition at line 125 of file TH2.h.
Referenced by SetBinContent().
Reimplemented from TH1.
Reimplemented in TH2Poly.
Definition at line 126 of file TH2.h.
Referenced by SetBinContent().
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Interface to TSpectrum2::Search the function finds peaks in this histogram where the width is > sigma and the peak maximum greater than threshold*maximum bin content of this.
for more detauils see TSpectrum::Search. note the difference in the default value for option compared to TSpectrum2::Search option="" by default (instead of "goff")
Reimplemented from TH1.
Smooth bin contents of this 2-d histogram using kernel algorithms similar to the ones used in the raster graphics community.
Bin contents in the active range are replaced by their smooth values. If Errors are defined via Sumw2, they are also scaled and computed. However, note the resulting errors will be correlated between different-bins, so the errors should not be used blindly to perform any calculation involving several bins, like fitting the histogram. One would need to compute also the bin by bin correlation matrix.
3 kernels are proposed k5a, k5b and k3a. k5a and k5b act on 5x5 cells (i-2,i-1,i,i+1,i+2, and same for j) k5b is a bit more stronger in smoothing k3a acts only on 3x3 cells (i-1,i,i+1, and same for j). By default the kernel "k5a" is used. You can select the kernels "k5b" or "k3a" via the option argument. If TAxis::SetRange has been called on the x or/and y axis, only the bins in the specified range are smoothed. In the current implementation if the first argument is not used (default value=1).
implementation by David McKee (dmckee@bama.ua.edu). Extended by Rene Brun
Reimplemented from TH1.
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Definition at line 42 of file TH2.h.
Referenced by Copy(), TProfile2D::Divide(), Fill(), TProfile2D::Fill(), FillN(), GetStats(), TProfile2D::GetStats(), PutStats(), TProfile2D::PutStats(), Reset(), and TH2().
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Definition at line 40 of file TH2.h.
Referenced by TH2Poly::ClearBinContents(), Copy(), TProfile2D::Divide(), Fill(), TH2Poly::Fill(), TProfile2D::Fill(), FillN(), GetStats(), TProfile2D::GetStats(), TH2Poly::Initialize(), PutStats(), TProfile2D::PutStats(), Reset(), and TH2().
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Definition at line 41 of file TH2.h.
Referenced by TH2Poly::ClearBinContents(), Copy(), TProfile2D::Divide(), Fill(), TH2Poly::Fill(), TProfile2D::Fill(), FillN(), GetStats(), TProfile2D::GetStats(), TH2Poly::Initialize(), PutStats(), TProfile2D::PutStats(), Reset(), and TH2().
ROOT 6.06/09 - Reference Guide Generated on Sun Dec 10 2017 22:28:23 using Doxygen 1.8.9.
