Hello everyone, I have a histogram in a root file, I want to add a horizontal factor (shift the histogram to the left), I tried to do this hist2 = 8 * hist1 But I get an error " invalid operands to binary expression (‘int’ and ‘TH1S *’)" Is there a way to add in the horizontal factor?

Wile_E_Coyote April 22, 2021, 9:47am 3

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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Horizontal scaling for histogram