I apologize in advance for this silly question but I cannot find a way to copy an axis from one histogram to an other and keeping the style of this axis.
The axis between histograms changed but I want to keep same label, size, offset… (and whatever I forgot…)
What kind of axis are you talking about ? numerical ? alpha numerical ? TAxis are created from the histogram parameter you give. Typically the X axis is created from the lower and upper limits you defined at creation time and the Y axis from the content of the histogram. May be a sketch of the code you have in mind would help to understand what you want to do exactly.