Search for the … Warning when using the option “0” … in the TH1::Fit method description (replace “->[url=http://root.cern.ch/root/html/TObject.html#TObject:ResetBit]ResetBit/url;” with “->[url=http://root.cern.ch/root/html/TObject.html#TObject:ResetBit]ResetBit/url;” in the example code given therein).
See also: [url]Multiple fitted histograms not drawing on same pad