The black points are from data. The red points are a fit function. But as we look at pdf, the red points are mixed black. But for png it is not. In fact, I didn’t mix the red and black for fit. How to modify?
ROOT Version: Not Provided Platform: Not Provided Compiler: Not Provided
BTW. Looking at the png, I can see black dots in the middle of the red lines. I guess you would need something like this: red_histo->SetMarkerColor(kRed);