Dear RooTers,
It is possible a very beginner question, but I don't know the solution.
I have several directory. All of them contains many data, which are analized
directory by directory, so after the analysis in every directory conains a root
file also.
In the root files there are two histogram.
I would need to the "same" histogram from every directory.
The problem is, if I do this:
{
TFile* File1 = new TFile("one.root");
TH2D* OneHisto = File1->Get("h2");
TFile* File12 = new TFile("two.root");
TH2D* TwoHisto = File1->Get("h2");
cout << OneHisto->GetNbinsX();
}
I get error ...
What can I do, What do I do wrong?
Thanks, k.
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