Histogram from TTree: Draw options

Hello,

I am drawing histograms from my tree the easy way:

TH1F *h_fakeet1 = new TH1F(“h_fakeet1”,“h_fakeet1”,50,-2.,2.);

tfull2->Draw(“etTrueminusRecN/etTrueNonInt>>h_fakeet1”,cu1&&cu2);

(Where tfull2 is my tree and cu1 and cu2 are cuts.)

I then want to superimpose the same histogram without cut 2:

TH1F *h_fakeet1w = new TH1F(“h_fakeet1”,“h_fakeet1”,50,-2.,2.);

tfull2->Draw(“etTrueminusRecN/etTrueNonInt>>h_fakeet1w”,cu1,“SAME”);

But now I need to scale them… but adding scale factors does not appear to work here, ie

tfull2->Draw(“etTrueminusRecN/etTrueNonInt>>h_fakeet1w”,cu1,65,“SAME”);

(and so on) don’t make sense to root.

So what I really want to do is create the histogram without drawing it, so that I can then normalize it before drawing it.

Thankyou in advance for any suggestions

Lily

use option “goff”. See documentation.

Rene