I have 2 root files, time1d.root & timn1d.root, first one contains 25 histograms(TH1F* hi) & next one has also 25 histograms(TH1F*his).
I am applying
TFile f("time1d.root ");
TFile f("timn1d.root ");
but canvas contains only one histogram his9; what should I do to see overlap of two histo in same pad?