Plotting several variables by using array

Hi Wile,

I tried with tr->Project, but it is plotting empty histograms. I am attaching the macro. Please have a look.

Thanks, (1.6 KB)

Try (TTree::Project does not draw anything):

      tr->Draw(Form("%s >> h_bs", varmass[i]), Q[j]);

Search for “>>” in the TTree::Draw method description.

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