Hi rooters, I am using root version 2.26/00. I have a normal TH1F hist hctaudis. I created another one hct by calculate some function and then I do hct->SetBinContent(i,xx); for each bin. xx is a float. At last I also did hct->SetEntries(number); Now I want to overlay the two hist in one plot when y axis is in log mode(in linear mode it works) If I do hctaudis->Draw(); hct->Draw("Csame"); it is fine. If I do hctaudis->Draw("e1p"); hct->Draw("Csame"); hct will never show up. Does any one can help me out this problem? Thanks, Hongquan
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