Hello Can you try two ROOT macros from $ROOTSYS/tutorials .x hsimple.C .x ntuple1.C in this order to see whether they do what you want Hope this helps, Valeri > Hello, > > I am a brand new user of ROOT that would like to use it for graphing 4 > dimensions. First off, let me explain what I would like to do and then someone > can tell me: > > 1. Is it possible? > 2. If yes to (1), then how would I go about doing it? > > I have data in an ASCII format consisting of 4 columns. The first 2 columns, > call them index1 and index2 (look at these two as making up the x and y axes) > are indices for both the 3rd. and 4th. columns. The 3rd. column represents > "test" data and the 4th. column represents what I would call "golden" data. > What I would like to be able to do is to "color code" the 3D surface represented > by column 3 to correspond with the delta it has with the "golden" data in column > 4. The greater the delta, the more the color changes. > > Thank you very much in advance for your help. I really like the concept that > ROOT is using and would love to be able to use it for the case I've mentioned > above. > > With Best Regards, > > - Brendan > > -- > ---------------------------------------------------------- > Brendan Rankin > Senior Applications Consultant (408)396-7176 (Cell) > Silicon Metrics Corporation (408)965-5331 (Work) > Email: brendan.rankin@siliconmetrics.com > ---------------------------------------------------------- > >
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