Hello Rooters,
I just have a short question ; I'm running some code to fill histos and
want them to be then stored in a root file.
To store one histo is obvious but I'd like to superpose several histos and
store the final superposed histo in the root file (it would be more
practical than superposing after having stored all the histos in
the root file).
To sum up, I would like to do the same operation like :
h1->Draw();
h2->Draw("SAME");
h3->Draw("SAME");
...
but while writing the histo in a root file.
I can't find out how.
Could someone give me some advices about this ??
Thanks in advance,
seb.
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