Using example ratioplot.C, I have managed to create two pads within a single canvas: the “top” pad with a THStack+TH1F (histplot) and the “bottom” pad (ratioplot) with the ratio of the two. The hist plot is just as I want it, and in fact looks great.
The problem is with the ratioplot. I have coded it in the exact same way as the histplot, but I cannot seem to change the label or title sizes (which is very peculiar, since I followed the same procedure in both cases). The ratioplot axes titles don’t even appear.
In a nutshell, I want to know how I can change the ratioplot axes’ text size. It would also be great if I could change the number y-axis divisions, e.g. -1 to 1 with major ticks at {-1,0,1} and minor ticks at 0.25 intervals.
Thanks in advance.
Best,
Vince.
P.S. The SetXXX{Size,Offset} in my code are obscure, I know. I was messing around with different values to see if anything changed (nothing did). Plotter_TopCR.cxx (8.61 KB)
It is difficult to test your macro because we do not have the data files…
Either you provide them (or reduced versions of them) or you provide a running, reduced, version of your macro reproducing your problem.
[quote=“couet”]It is difficult to test your macro because we do not have the data files…
Either you provide them (or reduced versions of them) or you provide a running, reduced, version of your macro reproducing your problem.[/quote]
Sorry about that…attached is a MWE. Lines 79-84 are what I want to accomplish, but these lines do nothing (as far as I can tell).
Your histogram on the bottom is drawn with the option “SAME”… which means that the histogram is drawn in a pre-existing plot. That pre-existing plot produces the axes. And that’s on that plot you should act to add titles. In your case that pre-existing plot is drawn by DrawFrame.