Subtraction of background under a peak

ROOT
1

Hi,
Pls I need your help, I have a 1D histogram and I want to draw the background under the signal on the same histogram and be able to get the value of the signal alone and also the background value alone. I edited the code from the tutorial it run but does not show anything. Attached is the codebackground.cpp (1.0 KB)

2

You did not send the root file used by your macro.
Which example did you start from ?

3

Thanks.
this is the root file
marneli.root (1.2 KB)
this the code I use in ploting
histo1.cpp (928 Bytes)
and this is my input file
marneli_0.txt (57.6 KB)

4

I ran this macro. The two histograms it generates and them store in marmeli.root are empty for me.

5

I covert the marneli.txt file to marneli.dat and that is what I use.

6

This topic was automatically closed 14 days after the last reply. New replies are no longer allowed.