Modify colorbar of histogramm

ROOT
1

Hi,

assumin I have such a histogramm

TH2F foo("name", "name", 5, 0, 5, 5, 0, 5)
for (int i=0; i<500; i++){
    foo.Fill(rnd.Uniform(0,5), rnd.Uniform(0,5));
}
foo.SetStats(kFALSE)
foo.Draw("COLZ")

How can I change the colorbar from giving absolute numbers to show relativ fractions instead? E.g. I would like 1 as max entry and change the color to show x% of max entry instead of y entries. Is it possible to do somethin like newLabel = oldLabel / maxLabel? I am using Root 5.34, updating to a newer version would be difficult, so it would be perfect if the solution work with 5.34.

2

The axis along the colour palette displayed when you draw a 2D histogram is labeled according to the histogram content. If you need to have the % instead you should create a new histogram with bins’ content matching the scale you need.

3

Well you are right. I was so focused on changing the labels that I did not consider to divide the bin content by the max value. Thanks for the push to the right direction.