Draw two graphs on one canvas with different Y scales

ROOT
1

Hello.

I have two data files and macro. And I need to draw two graphs on one canvas with different Y scales. I have read specific topic in ROOT manual, but unfortunately it hasn’t helped me.

Can you help me please to solve this problem.

Thank you.
comp.C (1006 Bytes)

2

Note: the attached macro assumes that both graphs have (almost) the same x-axis range.
comp.cxx (1.65 KB)

1 Like
3

Dear Pepe Le Pew,

Thank you very much for your help.

Best regards.

4

Note: the attached macro draws graphs with different x- and y- axes ranges.
comp.cxx (2.1 KB)
pkppontsprod7.txt (19 Bytes)
ptotprod7.txt (30 Bytes)

5

There is some problem. I have two data files. And I use first script. The range of X coordinate for the Red curve doesn’t coincide with the range of X coordinate for the Black curve. Any changes in Range for xmin and xmax haven’t led to desired result.

Thank you.
pkpprod11.txt (741 Bytes)
ptotprod11.txt (840 Bytes)
compprod11withoutmagnetcorr.pdf (17.5 KB)

6

comp.gif698×473 15 KB

comp.cxx (2.77 KB)

Just for completeness of this thread, see also: “Superimposing two TGraphs with different ranges”