Hi Datao, Datao Gong wrote: > > Hi, ROOTers, > It is very convenient to save histogram to a root files. When i fit a > histogram , i hope to save the fitted parameters with histograms. > histogram->Write() does not work. It save the histogram with statitisc > box and the fitted curve, but there is no fitted parameter box. > Actually if i set stytle wuth gStyle->SetOptFit(111), the fitted > parameter box appear. This is the expected behaviour. The fit parameter box appears only when gStyle->SetOptFit has been called. > > I also saved the TF1 object, but i do not know how to display the > parameter box of TF1. tf1->Draw() only draw a curve. Displaying the fitted parameters make sense only for the object (typycally histogram) being fitted. If you want to display the information from a TF1, create a TPaveText and add the information that you want. Rene Brun > > Anyone can help me about that? > > Thanks > > Datao
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