Value for Bar

[Ragazzetto]

Hi guys
And thank you @Boris-Em for the amazing works !
Anyway I have a problem ( seems very easy but I can't understand how to do it )...
I would like to show the bar value over or near the bar
I've found this method

private func addLabel(forIndex index: Int, atXPosition xPosition: Float, withMaxHeight maxHeight: Float)

but I can't use it.

Does anyone have an example code on how and where to use this method?

Thanks in advance

and excuse me for my terrible English

Vanni