Hello Xavier, Your statements like: par0[i] = gr1_0->GetBinContent(i); should work. Can you draw the gr1_xx histograms ? Could you send me a macro + the histogram file ? About X3D. The following options are supported W Wireframe mode (default) E Hidden Line removal mode R plain surface mode S Stereo mode (works only on 8 bits color planes) type M for a list of all possible options Rene Brun Xavier Morelle wrote: > > Hi rooters, > > I have defined a function > TF1 *f1 = new TF1("f1","landau(0)*gaus(3)",300,1700,6); > and I use it in the FitSlicesY function: > gr1->FitSlicesY(f1,0,126,0); > > Is it possible to get histograms for all the 6 parameters with the > value of the parameter for each fitted slice ? > > I tried something like: > par0[i] = gr1_0->GetBinContent(i); > . > . > . > par5[i] = gr1_5->GetBinContent(i); > > but it doesn't work. I have the usual constant, mean, sigma and > chi2 in the first 4 histograms, but nothing about the 6 parameters. > Is there a way to find it? > > an other question: > Is there a possibility to have plain surface with the X3D viewer like > we can have with OpenGL ? > > Thank's a lot for your help. > > Xavier
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