root programming

lamyaa

Hi all,

I want ask you about root programming , if I have A (mass number) for output and input data for experiment how I can comparison between A input and A output
see attachments

Attached Thumbnails

   

mfb

Draw both in the same diagram? (histogram->Draw("SAME") iirc).
Draw a two-dimensional plot (probably not in the object browser)?

lamyaa

thanks a lot ,

but I am beginner in this programming

please, can you explain this point in details

how I can draw both in the same diagram?

gbeagle

It's not super easy to overlay two histograms on the same canvas in root using the root browser.

It's easiest to just use the command prompt or write a script to be executed by root. ROOT is essentially just a collection of C++ libraries, so there really isn't 'root programming' its just C++. One of the previous posters already gave the basic commands for that. I can give a more explicit example if you need it.