Dear Rooters, I have a histogram which should be fitted with different formulars in different ranges. I use the "R+" option to implement this function. But with gStyle->SetOptFit(1) I got only the parameters of the first formular in the statistic box. my code is following: myfunc1 = new TF1("myfunc1", "[0]+[1]*(950.-x)**2", 950, 1014); myfunc1->SetLineColor(6); myfunc1->SetLineWidth(1); myhisto->Fit("myfunc1", "R0"); gStyle->SetOptFit(1); myfunc1->GetParameters(&par[0]); myfunc1->SetParameters(par); myfunc2 = new TF1("myfunc2", "gaus",1014 ,1030); myfunc2->SetLineColor(6); myfunc2->SetLineWidth(1); myhisto->Fit("myfunc2", "R0+"); gStyle->SetOptFit(1); How can I get the rest parameters' values? Thanks for any help. Best Regards Wen Mei
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