I want to Set logy scale for my Data/MC comparaison histogram, but when i do that i can only see Data and MC vanish . when i go back to the normal scale i can see both data and MC.
can anyone tell why i can’t see MC distribution when set logy scale ?
my guess was wrong, your MC and data have
similar y values (no surprise after Scale(…))
You must provide the complete macro producing
the stack.
Btw. you still dont show the plot with linear Y-scale.
The part with THStack is commented out,
instead you draw the histos directly.
However the order is wrong:
You first draw with option SAME then with ALP.
It should be the other way round.
Sorry for being late, i have tired to fixed the problem and i find what’s caused the problem.
I have just change SetMinimum(0) to SetMinimum(1) and it worked.