Soeren Lange wrote: > > Hi, > > how is it possible to fit with a user defined function? > > (...graph existing...) > > root [20] TF1 *f1 = new TF1("f1", "sin(x)", 0., 3.14); > root [21] graph->Fit("f1"); > Illegal number of parameters = 0 > > With graph->Fit("pol5") everything is fine. > > Is there any predefined fitting function else > than gaus, poln, expo ? Look at the example: http://root.cern.ch/root/html/examples/multifit.C.html Rene Brun
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