Scale up more than two histograms in TTrees

I need to normalize a couple of branches in a tree and with the same factor say 10. Is there a way to do it ?

So far I tried

loop (entries in a tree)
cout << x << “\t” << y << endl;
x, y are the objects to scale up.

Or rather, applying some weight to the chosen branches retain them after they are weighted

Is this a separate question from your previous topic?


I forgot that I posted it already. Its the same thing !
If you can please delete this post

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