[ROOT] Histogram Data

From: Manus (mjd@duke.edu)
Date: Tue Dec 03 2002 - 23:11:40 MET


Hello, I need to get data points, or "y values", from a histogram I have.
For example, if I know the horizontal, or x, value of a histogram, what
command do I use to get the y value out?  More specifically, say that my
histogram corresponds exactly to the function y = x^2, then if I wanted to
know the function value at, say x = 4, then the program would give me 16.
I have tried

h1->GetBinContents(x);

but this hasn't seemed to work.  It seems like it should be easy enough to
do - but I haven't found the right command yet.  Any help would be greatly
appreciated.  Thank you.

	mjd



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