116 for (
Int_t i = 0; i <
n; i++) {
134 for (
Int_t i = 0; i <
n; i++) {
180 memcpy(
fX, gr.
fX, n);
181 memcpy(
fY, gr.
fY, n);
223 if (
fX)
delete []
fX;
224 if (
fY)
delete []
fY;
235 memcpy(
fX, gr.
fX, n);
236 memcpy(
fY, gr.
fY, n);
256 fX[i] = vx(i + ivxlow);
257 fY[i] = vy(i + ivylow);
275 fX[i] = vx(i + ivxlow);
276 fY[i] = vy(i + ivylow);
287 Error(
"TGraph",
"Pointer to histogram is null");
300 TAxis *xaxis = ((
TH1*)h)->GetXaxis();
305 h->TAttLine::Copy(*
this);
306 h->TAttFill::Copy(*
this);
307 h->TAttMarker::Copy(*
this);
309 std::string gname =
"Graph_from_" + std::string(h->
GetName());
330 Error(
"TGraph",
"Pointer to function is null");
334 if (option) coption = *option;
335 if (coption ==
'i' || coption ==
'I')
fNpoints++;
345 if (coption ==
'i' || coption ==
'I') {
346 fX[i] = xmin + i * dx;
347 if (i == 0)
fY[i] = 0;
348 else fY[i] = integ + ((
TF1*)f)->Integral(
fX[i] - dx,
fX[i]);
350 }
else if (coption ==
'd' || coption ==
'D') {
351 fX[i] = xmin + (i + 0.5) * dx;
352 fY[i] = ((
TF1*)f)->Derivative(
fX[i]);
354 fX[i] = xmin + (i + 0.5) * dx;
355 fY[i] = ((
TF1*)f)->Eval(
fX[i]);
358 if (integ != 0 && coption ==
'I') {
359 for (i = 1; i <
fNpoints; i++)
fY[i] /= integ;
362 f->TAttLine::Copy(*
this);
363 f->TAttFill::Copy(*
this);
364 f->TAttMarker::Copy(*
this);
391 std::ifstream infile(fname.
Data());
392 if (!infile.good()) {
394 Error(
"TGraph",
"Cannot open file: %s, TGraph is Zombie", filename);
405 if (strcmp(option,
"") == 0) {
407 while (std::getline(infile, line,
'\n')) {
408 if (2 != sscanf(line.c_str(), format, &
x, &
y)) {
428 Error(
"TGraph",
"Incorrect input format! Allowed formats are {\"%%lg\",\"%%*lg\" or \"%%*s\"}");
433 Error(
"TGraph",
"Incorrect input format! Only %d tag(s) in format whereas 2 \"%%lg\" tags are expected!", ntokens);
436 Int_t ntokensToBeSaved = 0 ;
438 for (
Int_t idx = 0; idx < ntokens; idx++) {
440 if (isTokenToBeSaved[idx] == 1) {
444 if (ntokens >= 2 && ntokensToBeSaved != 2) {
445 Error(
"TGraph",
"Incorrect input format! There are %d \"%%lg\" tag(s) in format whereas 2 and only 2 are expected!", ntokensToBeSaved);
446 delete [] isTokenToBeSaved ;
452 char * token = NULL ;
454 Int_t token_idx = 0 ;
456 Int_t value_idx = 0 ;
459 while (std::getline(infile, line,
'\n')) {
461 if (line[line.size() - 1] == char(13)) {
462 line.erase(line.end() - 1, line.end()) ;
464 token = strtok(const_cast<char*>(line.c_str()), option) ;
465 while (token != NULL && value_idx < 2) {
466 if (isTokenToBeSaved[token_idx]) {
470 isLineToBeSkipped =
kTRUE ;
473 value[value_idx] = token_str.
Atof() ;
477 token = strtok(NULL, option) ;
480 if (!isLineToBeSkipped && value_idx == 2) {
487 isLineToBeSkipped =
kFALSE ;
495 delete [] isTokenToBeSaved ;
536 for (
Int_t i = 0; i < Narrays; ++i)
539 for (
Int_t i = 0; i < Narrays; ++i)
540 newarrays[i] =
new Double_t[arraySize];
570 opt = (opt ==
"") ?
"alp" : opt.
Data();
594 Error(
"Chisquare",
"Function pointer is Null - return -1");
621 return gr->
fX[left] > gr->
fX[right];
629 return gr->
fY[left] > gr->
fY[right];
638 return gr->
fX[left] * gr->
fX[left] + gr->
fY[left] * gr->
fY[left]
639 > gr->
fX[right] * gr->
fX[right] + gr->
fY[right] * gr->
fY[right];
648 xmin = xmax = ymin = ymax = 0;
658 if (
fX[i] < xmin) xmin =
fX[i];
659 if (
fX[i] > xmax) xmax =
fX[i];
660 if (
fY[i] < ymin) ymin =
fY[i];
661 if (
fY[i] > ymax) ymax =
fY[i];
662 if (ymin>0 && (yminl==0 || ymin<yminl)) yminl =
ymin;
663 if (xmin>0 && (xminl==0 || xmin<xminl)) xminl =
xmin;
666 if (
gPad &&
gPad->GetLogy() && yminl>0) ymin = yminl;
667 if (
gPad &&
gPad->GetLogx() && xminl>0) xmin = xminl;
696 if (ibegin < 0 || iend <= ibegin || obegin < 0) {
699 if (!arrays && ibegin == obegin) {
704 memmove(&arrays[0][obegin], &
fX[ibegin], n);
705 memmove(&arrays[1][obegin], &
fY[ibegin], n);
707 memmove(&
fX[obegin], &
fX[ibegin], n);
708 memmove(&
fY[obegin], &
fY[ibegin], n);
764 if (!strlen(option)) {
766 if (!
gPad->GetListOfPrimitives()->FindObject(
"TFrame")) opt =
"alp";
773 if (!
gPad->IsEditable())
gROOT->MakeDefCanvas();
779 gPad->IncrementPaletteColor(1, opt);
868 return spline->
Eval(x);
874 if (option && *option) {
881 std::vector<Double_t> xsort(
fNpoints);
882 std::vector<Double_t> ysort(
fNpoints);
883 std::vector<Int_t> indxsort(
fNpoints);
886 xsort[i] =
fX[ indxsort[i] ];
887 ysort[i] =
fY[ indxsort[i] ];
891 TSpline3 s(
"", &xsort[0], &ysort[0], fNpoints);
909 if (
fX[low] == x)
return fY[low];
924 if (low == -1 ||
fX[i] >
fX[low]) {
927 }
else if (low2 == -1) low2 = i;
928 }
else if (
fX[i] > x) {
929 if (up == -1 ||
fX[i] <
fX[up]) {
932 }
else if (up2 == -1) up2 = i;
948 assert(low != -1 && up != -1);
950 if (
fX[low] ==
fX[up])
return fY[low];
1016 memset(
fX + begin, 0, (end - begin)*
sizeof(
Double_t));
1017 memset(
fY + begin, 0, (end - begin)*
sizeof(
Double_t));
1053 linear = (
char*) strstr(fname,
"++");
1056 f1 =
new TF1(fname, fname, xmin, xmax);
1058 f1 = (
TF1*)
gROOT->GetFunction(fname);
1060 Printf(
"Unknown function: %s", fname);
1064 return Fit(f1, option,
"", xmin, xmax);
1312 gROOT->MakeDefCanvas();
1315 Error(
"FitPanel",
"Unable to create a default canvas");
1321 if (handler && handler->
LoadPlugin() != -1) {
1323 Error(
"FitPanel",
"Unable to crate the FitPanel");
1325 Error(
"FitPanel",
"Unable to find the FitPanel plug-in");
1334 if (rms1 == 0)
return 0;
1336 if (rms2 == 0)
return 0;
1351 sumxy +=
fX[i] *
fY[i];
1353 return sumxy / sum - sumx / sum * sumy /
sum;
1361 if (axis < 1 || axis > 2)
return 0;
1365 if (axis == 1) sumx +=
fX[i];
1376 if (axis < 1 || axis > 2)
return 0;
1382 sumx2 +=
fX[i] *
fX[i];
1385 sumx2 +=
fY[i] *
fY[i];
1471 Double_t rwxmin, rwxmax, rwymin, rwymax, maximum, minimum, dx, dy;
1487 }
else if (
gPad &&
gPad->GetLogy()) {
1498 if (rwxmin == rwxmax) rwxmax += 1.;
1499 if (rwymin == rwymax) rwymax += 1.;
1500 dx = 0.1 * (rwxmax - rwxmin);
1501 dy = 0.1 * (rwymax - rwymin);
1502 uxmin = rwxmin - dx;
1503 uxmax = rwxmax + dx;
1504 minimum = rwymin - dy;
1505 maximum = rwymax + dy;
1512 if (uxmin < 0 && rwxmin >= 0) {
1513 if (
gPad &&
gPad->GetLogx()) uxmin = 0.9 * rwxmin;
1516 if (uxmax > 0 && rwxmax <= 0) {
1517 if (
gPad &&
gPad->GetLogx()) uxmax = 1.1 * rwxmax;
1521 if (minimum < 0 && rwymin >= 0) minimum = 0.9 * rwymin;
1523 if (minimum <= 0 && gPad && gPad->GetLogy()) minimum = 0.001 * maximum;
1524 if (uxmin <= 0 && gPad && gPad->GetLogx()) {
1525 if (uxmax > 1000) uxmin = 1;
1526 else uxmin = 0.001 * uxmax;
1533 const char *gname =
GetName();
1534 if (!gname[0]) gname =
"Graph";
1582 if (i < 0 || i >=
fNpoints)
return -1;
1583 if (!
fX || !
fY)
return -1;
1614 Double_t allcha, sumx, sumx2,
x, val, rms, mean;
1624 allcha = sumx = sumx2 = 0;
1625 for (bin = 0; bin <
fNpoints; bin++) {
1627 if (x < xmin || x > xmax)
continue;
1631 sumx2 += val * x *
x;
1634 if (np == 0 || allcha == 0)
return;
1635 mean = sumx / allcha;
1638 if (rms == 0) rms = 1;
1641 f1->
SetParameter(0, binwidx * allcha / (sqrtpi * rms));
1700 for (i = 0; i <
fNpoints - 1; i++) {
1709 for (i = 0; i < fNpoints - 1; i++) {
1721 if (dpx * dpx + dpy * dpy < 25) ipoint = 0;
1739 Error(
"TGraph",
"Inserted point index should be > 0");
1744 Error(
"TGraph",
"Inserted point index should be <= %d",
fNpoints-1);
1792 if (first < 0) first = 0;
1795 if (first >= last)
return 0;
1796 Int_t np = last - first + 1;
1803 for (
Int_t i = first; i <= last; i++) {
1804 Int_t j = first + (i - first + 1) % np;
1805 sum += (
fY[i] +
fY[j]) * (
fX[j] -
fX[i]);
1842 const Int_t idim = 20;
1858 if (m > idim || m > n)
return;
1860 for (l = 2; l <=
m; ++
l) {
1862 b[m + l*20 - 21] = zero;
1868 if (xk < xmin || xk > xmax)
continue;
1873 for (l = 2; l <=
m; ++
l) {
1876 da[l-1] += power * yk;
1878 for (l = 2; l <=
m; ++
l) {
1880 b[m + l*20 - 21] += power;
1884 for (i = 3; i <=
m; ++i) {
1885 for (k = i; k <=
m; ++k) {
1886 b[k - 1 + (i-1)*20 - 21] = b[k + (i-2)*20 - 21];
1893 for (i = 1; i <
m; ++i) a[i] = 0;
1896 for (i = 0; i <
m; ++i) a[i] = da[i];
1926 xbar = ybar = x2bar = xybar = 0;
1930 if (xk < xmin || xk > xmax)
continue;
1934 if (yk <= 0) yk = 1
e-9;
1943 det = fn * x2bar - xbar * xbar;
1946 if (fn > 0) a0 = ybar / fn;
1952 a0 = (x2bar * ybar - xbar * xybar) / det;
1953 a1 = (fn * xybar - xbar * ybar) / det;
1971 if (painter) painter->
PaintGraph(
this, npoints, x, y, chopt);
1980 if (painter) painter->
PaintGrapHist(
this, npoints, x, y, chopt);
1998 printf(
"x[%d]=%g, y[%d]=%g\n", i,
fX[i], i,
fY[i]);
2028 if (dpx * dpx + dpy * dpy < 100) {
2041 if (ipoint < 0)
return -1;
2056 out <<
" " << std::endl;
2057 static Int_t frameNumber = 0;
2064 out <<
" Double_t " << fXName <<
"[" <<
fNpoints <<
"] = {" << std::endl;
2065 for (i = 0; i <
fNpoints-1; i++) out <<
" " <<
fX[i] <<
"," << std::endl;
2066 out <<
" " <<
fX[fNpoints-1] <<
"};" << std::endl;
2067 out <<
" Double_t " << fYName <<
"[" << fNpoints <<
"] = {" << std::endl;
2068 for (i = 0; i < fNpoints-1; i++) out <<
" " <<
fY[i] <<
"," << std::endl;
2069 out <<
" " <<
fY[fNpoints-1] <<
"};" << std::endl;
2071 else out <<
" TGraph *";
2072 out <<
"graph = new TGraph(" << fNpoints <<
"," << fXName <<
"," << fYName <<
");" << std::endl;
2075 else out <<
" TGraph *";
2076 out <<
"graph = new TGraph();" << std::endl;
2079 out <<
" graph->SetName(" << quote <<
GetName() << quote <<
");" << std::endl;
2080 out <<
" graph->SetTitle(" << quote <<
GetTitle() << quote <<
");" << std::endl;
2088 hname += frameNumber;
2092 out <<
" " << std::endl;
2098 while ((obj = next())) {
2101 out <<
" graph->GetListOfFunctions()->Add(ptstats);" << std::endl;
2102 out <<
" ptstats->SetParent(graph->GetListOfFunctions());" << std::endl;
2107 out <<
" " << objname <<
"->SetParent(graph);\n";
2109 out <<
" graph->GetListOfFunctions()->Add(" 2110 << objname <<
");" << std::endl;
2115 l = strstr(option,
"multigraph");
2117 out <<
" multigraph->Add(graph," << quote << l + 10 << quote <<
");" << std::endl;
2120 l = strstr(option,
"th2poly");
2122 out <<
" " << l + 7 <<
"->AddBin(graph);" << std::endl;
2125 out <<
" graph->Draw(" << quote << option << quote <<
");" << std::endl;
2275 if (greaterfunc ==
TGraph::CompareX && ascending && low == 0 && high == -1111)
2278 if (high == -1111) high =
GetN() - 1;
2280 if (high <= low)
return;
2285 while (left < right) {
2287 while (left <= high && greaterfunc(
this, left, low) != ascending)
2290 while (right > low && greaterfunc(
this, right, low) == ascending)
2292 if (left < right && left < high && right > low)
2298 Sort(greaterfunc, ascending, low, right - 1);
2299 Sort(greaterfunc, ascending, right + 1, high);
2315 while ((obj = next())) {
2325 TNamed::Streamer(b);
2326 TAttLine::Streamer(b);
2327 TAttFill::Streamer(b);
2328 TAttMarker::Streamer(b);
2384 arr[pos1] = arr[pos2];
2419 while ((obj = next())) {
2435 "Cannot merge - an object which doesn't inherit from TGraph found in the list");
2448 for (
Int_t i = 0 ; i < g->
GetN(); i++) {
2461 ,
Int_t maxiterations)
2464 static Int_t j1, it, j3, j2;
2497 if (j1 != 2)
goto L100;
2498 if (ya * Y < 0)
goto L120;
2507 if (it >= maxiterations) k = j1;
2515 if (j1 > 3)
goto L170;
2531 if (it >= maxiterations) k = j1;
2560 x2 = X - Y * (X -
x1) / (Y - y1);
2564 if ((x2 - a)*(x2 - b) < 0) {
2566 if (it >= maxiterations) k = j1;
2577 if ((x2 - a)*(x2 -
b) >= 0) {
2582 if (it >= maxiterations) k = j1;
2590 if (j1 != 4)
return;
2601 if (ytest <= 0)
goto L130;
virtual TFitResultPtr Fit(const char *formula, Option_t *option="", Option_t *goption="", Axis_t xmin=0, Axis_t xmax=0)
Fit this graph with function with name fname.
void PaintGrapHist(Int_t npoints, const Double_t *x, const Double_t *y, Option_t *chopt)
Draw the (x,y) as a histogram.
virtual void SavePrimitive(std::ostream &out, Option_t *option="")
Save primitive as a C++ statement(s) on output stream out.
virtual void SetTitleOffset(Float_t offset=1)
Set distance between the axis and the axis title Offset is a correction factor with respect to the "s...
Int_t fNpoints
Number of points <= fMaxSize.
virtual const char * GetName() const
Returns name of object.
virtual void PaintHelper(TGraph *theGraph, Option_t *option)=0
virtual void SetLineWidth(Width_t lwidth)
Set the line width.
virtual Double_t GetErrorYhigh(Int_t bin) const
This function is called by GraphFitChisquare.
Abstract interface to a histogram painter.
static long int sum(long int i)
Double_t * fX
[fNpoints] array of X points
virtual Int_t WriteClassBuffer(const TClass *cl, void *pointer)=0
virtual Int_t GetNpx() const
virtual void FitPanel()
Display a GUI panel with all graph fit options.
virtual Double_t GetErrorY(Int_t bin) const
This function is called by GraphFitChisquare.
virtual void SetMaximum(Double_t maximum=-1111)
double Chisquare(const TH1 &h1, TF1 &f1, bool useRange, bool usePL=false)
compute the chi2 value for an histogram given a function (see TH1::Chisquare for the documentation) ...
static Bool_t CompareRadius(const TGraph *gr, Int_t left, Int_t right)
Return kTRUE if point number "left"'s distance to origin is bigger than that of point number "right"...
void UseCurrentStyle()
Copy current attributes from/to current style.
TGraph()
Graph default constructor.
TF1 * GetFunction(const char *name) const
Return pointer to function with name.
virtual void SetLimits(Double_t xmin, Double_t xmax)
virtual Double_t ** Allocate(Int_t newsize)
virtual void SetTimeFormat(const char *format="")
Change the format used for time plotting.
void PaintGraph(Int_t npoints, const Double_t *x, const Double_t *y, Option_t *chopt)
Draw the (x,y) as a graph.
virtual void DrawPanelHelper(TGraph *theGraph)=0
virtual void SetDirectory(TDirectory *dir)
By default when an histogram is created, it is added to the list of histogram objects in the current ...
virtual Float_t GetLabelOffset() const
virtual void InitPolynom(Double_t xmin=0, Double_t xmax=0)
Compute Initial values of parameters for a polynom.
TString & ReplaceAll(const TString &s1, const TString &s2)
virtual void SetMinimum(Double_t minimum=-1111)
Set the minimum of the graph.
R__EXTERN TStyle * gStyle
void SetHistLineWidth(Width_t width=1)
THist< 1, float, THistStatContent, THistStatUncertainty > TH1F
static Bool_t CompareX(const TGraph *gr, Int_t left, Int_t right)
Return kTRUE if fX[left] > fX[right]. Can be used by Sort.
Base class for spline implementation containing the Draw/Paint methods.
Bool_t IsFloat() const
Returns kTRUE if string contains a floating point or integer number.
virtual Double_t GetBinContent(Int_t bin) const
Return content of bin number bin.
virtual void SetNdivisions(Int_t n=510, Bool_t optim=kTRUE)
Set the number of divisions for this axis.
void H1LeastSquareSeqnd(Int_t n, Double_t *a, Int_t idim, Int_t &ifail, Int_t k, Double_t *b)
Extracted from CERN Program library routine DSEQN.
TList * GetListOfFunctions() const
TAxis * GetYaxis() const
Get y axis of the graph.
void ToUpper()
Change string to upper case.
Buffer base class used for serializing objects.
virtual void SetMinimum(Double_t minimum=-1111)
virtual Int_t CheckByteCount(UInt_t startpos, UInt_t bcnt, const TClass *clss)=0
Ssiz_t Index(const char *pat, Ssiz_t i=0, ECaseCompare cmp=kExact) const
R__ALWAYS_INLINE Bool_t TestBit(UInt_t f) const
Int_t LoadPlugin()
Load the plugin library for this handler.
virtual TObject * FindObject(const char *name) const
Search object named name in the list of functions.
static constexpr double ps
1-D histogram with a float per channel (see TH1 documentation)}
virtual void DrawPanel()
Display a panel with all graph drawing options.
virtual void LeastSquareFit(Int_t m, Double_t *a, Double_t xmin=0, Double_t xmax=0)
Least squares polynomial fitting without weights.
virtual void SetTitleFont(Style_t font=62)
Set the title font.
Short_t Min(Short_t a, Short_t b)
void ToLower()
Change string to lower-case.
virtual Double_t GetCovariance() const
Return covariance of vectors x,y.
TList * fFunctions
Pointer to list of functions (fits and user)
void Copy(TAttMarker &attmarker) const
Copy this marker attributes to a new TAttMarker.
virtual void SetFillStyle(Style_t fstyle)
Set the fill area style.
virtual void SetTitle(const char *title="")
Set graph title.
virtual void UseCurrentStyle()
Set current style settings in this object This function is called when either TCanvas::UseCurrentStyl...
virtual Float_t GetLabelSize() const
TH1F * fHistogram
Pointer to histogram used for drawing axis.
virtual void RecursiveRemove(TObject *obj)
Recursively remove object from the list of functions.
virtual Double_t Integral(Int_t first=0, Int_t last=-1) const
Integrate the TGraph data within a given (index) range.
void CenterTitle(Bool_t center=kTRUE)
Center axis title.
virtual Double_t GetErrorYlow(Int_t bin) const
This function is called by GraphFitChisquare.
virtual TObject * Clone(const char *newname="") const
Make a clone of an collection using the Streamer facility.
virtual void Apply(TF1 *f)
Apply function f to all the data points f may be a 1-D function TF1 or 2-d function TF2 The Y values ...
virtual void SetLabelOffset(Float_t offset=0.005)
Set distance between the axis and the labels The distance is expressed in per cent of the pad width...
virtual void Draw(Option_t *chopt="")
Draw this graph with its current attributes.
virtual Width_t GetLineWidth() const
Return the line width.
void SetBit(UInt_t f, Bool_t set)
Set or unset the user status bits as specified in f.
virtual TObject * FindObject(const char *name) const
Delete a TObjLink object.
Width_t GetHistLineWidth() const
Class to create third splines to interpolate knots Arbitrary conditions can be introduced for first a...
if object in a list can be deleted
TString & Replace(Ssiz_t pos, Ssiz_t n, const char *s)
virtual void SetLabelFont(Style_t font=62)
Set labels' font.
virtual void AppendPad(Option_t *option="")
Append graphics object to current pad.
virtual Int_t Merge(TCollection *list)
Adds all graphs from the collection to this graph.
virtual Style_t GetMarkerStyle() const
Return the marker style.
virtual Style_t GetTitleFont() const
virtual Bool_t CopyPoints(Double_t **newarrays, Int_t ibegin, Int_t iend, Int_t obegin)
Copy points from fX and fY to arrays[0] and arrays[1] or to fX and fY if arrays == 0 and ibegin != ie...
virtual Style_t GetLineStyle() const
Return the line style.
virtual Int_t GetDimension() const
Double_t ** ShrinkAndCopy(Int_t size, Int_t iend)
if size*2 <= fMaxSize allocate new arrays of size points, copy points [0,oend).
virtual void SetParent(TObject *p=0)
static const double x2[5]
Fill Area Attributes class.
virtual void Paint(Option_t *chopt="")
Draw this graph with its current attributes.
static TString Format(const char *fmt,...)
Static method which formats a string using a printf style format descriptor and return a TString...
virtual Double_t Chisquare(TF1 *f1, Option_t *option="") const
Return the chisquare of this graph with respect to f1.
TGraph & operator=(const TGraph &)
Equal operator for this graph.
void SetHistFillColor(Color_t color=1)
virtual void SetName(const char *name="")
Set graph name.
virtual Bool_t GetTimeDisplay() const
void Copy(TAttLine &attline) const
Copy this line attributes to a new TAttLine.
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.
The TNamed class is the base class for all named ROOT classes.
virtual void Sort(Bool_t(*greater)(const TGraph *, Int_t, Int_t)=&TGraph::CompareX, Bool_t ascending=kTRUE, Int_t low=0, Int_t high=-1111)
Sorts the points of this TGraph using in-place quicksort (see e.g.
virtual void Print(Option_t *chopt="") const
Print graph values.
virtual void SetMaximum(Double_t maximum=-1111)
Set the maximum of the graph.
void Zero(Int_t &k, Double_t AZ, Double_t BZ, Double_t E2, Double_t &X, Double_t &Y, Int_t maxiterations)
Find zero of a continuous function.
virtual Double_t GetErrorX(Int_t bin) const
This function is called by GraphFitChisquare.
Double_t fMinimum
Minimum value for plotting along y.
virtual Double_t GetBinCenter(Int_t bin) const
Return center of bin.
virtual Double_t Eval(Double_t x, TSpline *spline=0, Option_t *option="") const
Interpolate points in this graph at x using a TSpline.
virtual void SetMarkerColor(Color_t mcolor=1)
Set the marker color.
Style_t GetHistFillStyle() const
void Sort(Index n, const Element *a, Index *index, Bool_t down=kTRUE)
Sort the n elements of the array a of generic templated type Element.
virtual Size_t GetMarkerSize() const
Return the marker size.
Double_t ATan2(Double_t, Double_t)
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.
Bool_t IsInside(T xp, T yp, Int_t np, T *x, T *y)
Function which returns kTRUE if point xp,yp lies inside the polygon defined by the np points in array...
virtual Int_t RemovePoint()
Delete point close to the mouse position.
virtual void SetNameTitle(const char *name="", const char *title="")
Set graph name and title.
virtual const char * GetTimeFormat() const
virtual void SetTimeDisplay(Int_t value)
Bool_t GetRotateTitle() const
virtual Int_t GetNdivisions() const
virtual void ExecuteEvent(Int_t event, Int_t px, Int_t py)
Execute action corresponding to one event.
virtual void Expand(Int_t newsize)
If array sizes <= newsize, expand storage to 2*newsize.
Bool_t CtorAllocate()
In constructors set fNpoints than call this method.
virtual void SetLineColor(Color_t lcolor)
Set the line color.
Using a TBrowser one can browse all ROOT objects.
virtual void SavePrimitive(std::ostream &out, Option_t *option="")
Save primitive as a C++ statement(s) on output stream out.
virtual void SetParLimits(Int_t ipar, Double_t parmin, Double_t parmax)
Set limits for parameter ipar.
virtual Double_t GetErrorXlow(Int_t bin) const
This function is called by GraphFitChisquare.
TNamed & operator=(const TNamed &rhs)
TNamed assignment operator.
virtual Int_t GetPoint(Int_t i, Double_t &x, Double_t &y) const
Get x and y values for point number i.
virtual TObject * First() const
Return the first object in the list. Returns 0 when list is empty.
virtual void SwapPoints(Int_t pos1, Int_t pos2)
Swap points.
void SetHistFillStyle(Style_t styl=0)
const char * GetTitle() const
Returns title of object.
Class to manage histogram axis.
R__EXTERN TSystem * gSystem
if object ctor succeeded but object should not be used
virtual void SetFillColor(Color_t fcolor)
Set the fill area color.
Long_t ExecPlugin(int nargs, const T &... params)
virtual TObject * Remove(TObject *obj)
Remove object from the list.
Provides an indirection to the TFitResult class and with a semantics identical to a TFitResult pointe...
static void SwapValues(Double_t *arr, Int_t pos1, Int_t pos2)
Swap values.
virtual Bool_t InheritsFrom(const char *classname) const
Returns kTRUE if object inherits from class "classname".
virtual Int_t DistancetoPrimitiveHelper(TGraph *theGraph, Int_t px, Int_t py)=0
Collection abstract base class.
virtual Bool_t DoMerge(const TGraph *g)
protected function to perform the merge operation of a graph
void Form(const char *fmt,...)
Formats a string using a printf style format descriptor.
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.
virtual Float_t GetTitleOffset() const
fHistogram must be reset in GetHistogram
virtual void Error(const char *method, const char *msgfmt,...) const
Issue error message.
char * Form(const char *fmt,...)
virtual Int_t InsertPoint()
Insert a new point at the mouse position.
static TVirtualFitter * GetFitter()
static: return the current Fitter
virtual void SetMarkerStyle(Style_t mstyle=1)
Set the marker style.
virtual Double_t Eval(Double_t x) const =0
Bool_t GetEditable() const
Return kTRUE if kNotEditable bit is not set, kFALSE otherwise.
virtual Double_t GetXmin() const
virtual Double_t GetRMS(Int_t axis=1) const
Return RMS of X (axis=1) or Y (axis=2)
virtual void ReadFastArray(Bool_t *b, Int_t n)=0
virtual void SetLabelSize(Float_t size=0.04)
Set size of axis labels The size is expressed in per cent of the pad width.
virtual void SetMarkerSize(Size_t msize=1)
Set the marker size.
virtual void SetTitleSize(Float_t size=0.04)
Set size of axis title The size is expressed in per cent of the pad width.
TAxis * GetXaxis() const
Get x axis of the graph.
virtual Color_t GetLineColor() const
Return the line color.
virtual void SetName(const char *name)
Change the name of this histogram.
virtual void InsertPointBefore(Int_t ipoint, Double_t x, Double_t y)
Insert a new point with coordinates (x,y) before the point number ipoint.
virtual Int_t ReadClassBuffer(const TClass *cl, void *pointer, const TClass *onfile_class=0)=0
virtual void InitGaus(Double_t xmin=0, Double_t xmax=0)
Compute Initial values of parameters for a gaussian.
Color_t GetHistFillColor() const
virtual Double_t Eval(Double_t x, Double_t y=0, Double_t z=0, Double_t t=0) const
Evaluate this function.
virtual Double_t GetMean(Int_t axis=1) const
Return mean value of X (axis=1) or Y (axis=2)
virtual Bool_t IsEmpty() const
void SetNoExponent(Bool_t noExponent=kTRUE)
Set the NoExponent flag By default, an exponent of the form 10^N is used when the label value are eit...
static const double x1[5]
static TVirtualGraphPainter * GetPainter()
Static function returning a pointer to the current graph painter.
class describing the range in the coordinates it supports multiple range in a coordinate.
TH1F * GetHistogram() const
Returns a pointer to the histogram used to draw the axis Takes into account the two following cases...
void SetHistLineStyle(Style_t styl=0)
Bool_t GetCenterTitle() const
virtual void PaintStats(TF1 *fit)
Draw the stats.
Color_t GetHistLineColor() const
virtual Int_t DistancetoPrimitive(Int_t px, Int_t py)
Compute distance from point px,py to a graph.
graph is sorted in X points
virtual Color_t GetFillColor() const
Return the fill area color.
virtual Double_t GetXmax() const
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.
Bool_t Contains(const char *pat, ECaseCompare cmp=kExact) const
static constexpr double s
you should not use this method at all Int_t Int_t Double_t Double_t Double_t e
virtual ~TGraph()
Graph default destructor.
Double_t fMaximum
Maximum value for plotting along y.
virtual Float_t GetTitleSize() const
virtual void SetLineStyle(Style_t lstyle)
Set the line style.
Double_t ** ExpandAndCopy(Int_t size, Int_t iend)
if size > fMaxSize allocate new arrays of 2*size points and copy iend first points.
void FitOptionsMake(EFitObjectType type, const char *option, Foption_t &fitOption)
Decode list of options into fitOption.
Abstract Base Class for Fitting.
Binding & operator=(OUT(*fun)(void))
Mother of all ROOT objects.
virtual void UseCurrentStyle()
Set current style settings in this graph This function is called when either TCanvas::UseCurrentStyle...
virtual void Browse(TBrowser *b)
Browse.
virtual Int_t GetNpar() const
Style_t GetHistLineStyle() const
virtual void FillZero(Int_t begin, Int_t end, Bool_t from_ctor=kTRUE)
Set zero values for point arrays in the range [begin, end) Should be redefined in descendant classes...
virtual void SetPoint(Int_t i, Double_t x, Double_t y)
Set x and y values for point number i.
Double_t * fY
[fNpoints] array of Y points
virtual void InitExpo(Double_t xmin=0, Double_t xmax=0)
Compute Initial values of parameters for an exponential.
void RotateTitle(Bool_t rotate=kTRUE)
Rotate title by 180 degrees.
virtual void RecursiveRemove(TObject *obj)
Remove object from this collection and recursively remove the object from all other objects (and coll...
virtual void LeastSquareLinearFit(Int_t n, Double_t &a0, Double_t &a1, Int_t &ifail, Double_t xmin=0, Double_t xmax=0)
Least square linear fit without weights.
static Bool_t CompareArg(const TGraph *gr, Int_t left, Int_t right)
Return kTRUE if point number "left"'s argument (angle with respect to positive x-axis) is bigger than...
Bool_t GetNoExponent() const
A Graph is a graphics object made of two arrays X and Y with npoints each.
TObject * Clone(const char *newname=0) const
Make a complete copy of the underlying object.
you should not use this method at all Int_t Int_t Double_t Double_t Double_t Int_t Double_t Double_t Double_t Double_t b
Int_t Atoi() const
Return integer value of string.
virtual void CopyAndRelease(Double_t **newarrays, Int_t ibegin, Int_t iend, Int_t obegin)
Copy points from fX and fY to arrays[0] and arrays[1] or to fX and fY if arrays == 0 and ibegin != ie...
Double_t Atof() const
Return floating-point value contained in string.
Bool_t IsDigit() const
Returns true if all characters in string are digits (0-9) or white spaces, i.e.
virtual void DrawGraph(Int_t n, const Int_t *x, const Int_t *y, Option_t *option="")
Draw this graph with new attributes.
virtual void SetParameter(Int_t param, Double_t value)
virtual void SetTitle(const char *title)
See GetStatOverflows for more information.
TFitResultPtr FitObject(TH1 *h1, TF1 *f1, Foption_t &option, const ROOT::Math::MinimizerOptions &moption, const char *goption, ROOT::Fit::DataRange &range)
fitting function for a TH1 (called from TH1::Fit)
virtual Double_t GetCorrelationFactor() const
Return graph correlation factor.
virtual Bool_t ExpandPathName(TString &path)
Expand a pathname getting rid of special shell characters like ~.
virtual Color_t GetMarkerColor() const
Return the marker color.
Int_t fMaxSize
!Current dimension of arrays fX and fY
Option_t * GetDrawOption() const
Get option used by the graphics system to draw this object.
virtual Int_t IsInside(Double_t x, Double_t y) const
Return 1 if the point (x,y) is inside the polygon defined by the graph vertices 0 otherwise...
virtual Style_t GetFillStyle() const
Return the fill area style.
Double_t Sqrt(Double_t x)
virtual void ExecuteEventHelper(TGraph *theGraph, Int_t event, Int_t px, Int_t py)=0
virtual void ComputeRange(Double_t &xmin, Double_t &ymin, Double_t &xmax, Double_t &ymax) const
Compute the x/y range of the points in this graph.
virtual void PaintStats(TGraph *theGraph, TF1 *fit)=0
virtual const char * GetName() const
Returns name of object.
virtual void Set(Int_t n)
Set number of points in the graph Existing coordinates are preserved New coordinates above fNpoints a...
virtual void SetTitle(const char *title="")
Set the title of the TNamed.
void SetHistLineColor(Color_t color=1)
virtual TObject * GetUserFunc() const
Double_t GetMinimum() const
virtual void SetEditable(Bool_t editable=kTRUE)
if editable=kFALSE, the graph cannot be modified with the mouse by default a TGraph is editable ...
virtual Int_t GetValue(const char *name, Int_t dflt) const
Returns the integer value for a resource.
Double_t Eval(Double_t x) const
Eval this spline at x.
Double_t ** AllocateArrays(Int_t Narrays, Int_t arraySize)
Allocate arrays.
virtual Double_t GetErrorXhigh(Int_t bin) const
This function is called by GraphFitChisquare.
virtual void PaintGrapHist(TGraph *theGraph, Int_t npoints, const Double_t *x, const Double_t *y, Option_t *chopt)=0
clip to the frame boundary
Long64_t BinarySearch(Long64_t n, const T *array, T value)
Binary search in an array of n values to locate value.
virtual void PaintGraph(TGraph *theGraph, Int_t npoints, const Double_t *x, const Double_t *y, Option_t *chopt)=0
bit set if graph is non editable
TAxis * GetXaxis()
Get the behaviour adopted by the object about the statoverflows. See EStatOverflows for more informat...
virtual Style_t GetLabelFont() const
virtual Version_t ReadVersion(UInt_t *start=0, UInt_t *bcnt=0, const TClass *cl=0)=0
virtual const char * GetTitle() const
Returns title of object.
void Copy(TAttFill &attfill) const
Copy this fill attributes to a new TAttFill.
static Bool_t CompareY(const TGraph *gr, Int_t left, Int_t right)
Return kTRUE if fY[left] > fY[right]. Can be used by Sort.
const char * Data() const
virtual void SavePrimitive(std::ostream &out, Option_t *option="")
Save a primitive as a C++ statement(s) on output stream "out".