Changing the Range on the X-Axis of a Histogram
Image produced by .x ZoomHistogram.C
This demonstrates how to zoom into a histogram by changing the range on one of the axes (or both).
Author: Advait Dhingra
This notebook tutorial was automatically generated with ROOTBOOK-izer from the macro found in the ROOT repository on Wednesday, April 17, 2024 at 11:13 AM.
TH1F *orig = new TH1F("Normal Histogram", "Normal Histogram", 100, 0, 100);
for (int i = 0; i < 100; ++i) {
Double_t x = gRandom->Gaus(50, 10);
orig->Fill(x);
}
TH1F *zoom = (TH1F *)orig->Clone("zoom");
zoom->SetTitle("Zoomed-in Histogram");
zoom->GetXaxis()->SetRangeUser(50, 100);
TCanvas *c1 = new TCanvas("c1", "Histogram", 1500, 700);
c1->Divide(2, 1);
c1->cd(1);
orig->Draw();
c1->cd(2);
zoom->Draw();
Draw all canvases
%jsroot on
gROOT->GetListOfCanvases()->Draw()