I have a histogram h1. At some point I realise that I want to rescale the x axis by some parameter a. For that purpose I can create another histogram h2 as in the following example: void rescale_axis() { TH1F h1 = TH1F("angle", "angle", 10, 0.0, TMath::Pi()); //... //Filling h1 //... …

Rescale x axis of histogram

Wile_E_Coyote October 18, 2019, 9:14am 2

Can we shift histogram for several channels? ROOT

I’m not sure if this is fully kosher, but suit yourself : #include "TAxis.h" #include "TH1.h" #include "TArrayD.h" Double_t ScaleX(Double_t x) { Double_t v; v = 10 * x + 100; // "linear scaling" function example return v; } Double_t ScaleY(Double_t y) { Double_t v; v = 20 * y + 200; // "linear scaling" function example return v; } Double_t ScaleZ(Double_t z) { Double_t v; v = 30 * z + 300; // "linear scaling" function example return v; } void ScaleAxis(TAxis *a, Double_t (…

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