Hi, I’m fitting an histogram in order to get some parameters. But the fit is complicated, and it has to be manually tuned. What I do in my code, is to pause the execution, so I can tune the fit with the tool “Fit Panel”, until I get the a satisfactory fit, and then I want to that the execution con…

Update fit with Fit Panel

Wile_E_Coyote July 30, 2017, 5:14pm 2

Help for fit panel and next proccess ROOT

After clicking the “Fit” button in the “Fit Panel”, try (warning: the address of the function created by the “Fit Panel” will change each time one clicks the “Fit” button): { Double_t xmin = hspec->GetXaxis()->GetXmin(); Double_t xmax = hspec->GetXaxis()->GetXmax(); std::cout << "xmin = " << xmin << " , xmax = " << xmax << std::endl; // a "temporary function" (pointer changes when the "Fit" button is clicked) TF1 *f = hspec->GetFunction("PrevFitTMP"); // function created by Fit Panel …

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