Root Programming: Input/Output Comparison

[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

 

[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.