Fit paramters in stat box when using the "+" option

[couet]

May be this can help:

Options->Show Fit Parameters for multiple fits

Hello, I would like to fit a graph using multiple functions each for a given x-axis range, and to display the fit parameters on the canvas. TF1 *fit_1 = new TF1(“fit_1”,“pol6”,1.e-9,10.); fit_1->SetLineColor(kBlue); TF1 *fit_2 = new TF1(“fit_2”,“pol3”,10.,1.e4); fit_2->SetLineColor(kRed); gr_neutron->Fit(fit_neutron_1,“R”); gr_neutron->Fit(fit_neutron_2,“R+”); I am obviously aware of using Options->Show Fit Parameters or the equivalent command line gStyle->SetOptFit(). But both result in…