Fill string variables in 1D and 2D histograms in running entries of filled tree

General Chat
1

Dear Users,

I have a tree with string variables. I would like to run the loop over entries of the tree and fill the 1D histogram(string) and 2D histogram(string vs string). Please let me know how one can realize it ( particularly which type of histogram one has to define)?

Thank you in advance.

2

@couet can you please take a look? Thank you!

3

Have you tried the simple following way:

t->Draw("s1");
t->Draw("s1:s2")

like in this example.

4

Hi, Thank you for suggestion. Yes, using tree I can plot. I am interested to know if it is feasible to fill histogram with string variable when reading from tree? Thank you.

5

Yes you can create histogram with string “bins” and fill them with tree using the > operator. Also, after the Draw command I sent before the histogram htemp exists and can be used.

6

Okay, I will try and update the progress ASAP. Thank you so much.