Hi George, You can superimpose the result of a fit on a 2-d histogram. Using the fitted function TF2 *f2, do f2->Draw("same,cont1") Rene Brun On Thu, 30 Nov 2000, George A. Heintzelman wrote: > > Hi rooters, > > I'm working with some fits of 2-dimensional histograms with TF2's. But, > since people have a hard time seeing fits of 2-d histograms, I'd like > to present these in 1-D slices. > > I'm finding that, while it's easy to get the slices, it is hard to get > the 1-D function representing the fit values at the midpoint of the bin. > > In other words, what I would like is a way, given a TF2, to create > something that looks like a TF1 from it, binding one or the other > coordinates of the TF2 to a specific value. I'm not sure exactly how > this would look, but something like: > > TF1 * newf = TF2.BindX(33); > TF1 * newg = TF2.BindY(13.2); > > would work. > > I don't think there's anything like this now, but if there is, please > let me know how to do it. ;) If not, I think it would be an extremely > valuable addition to ROOT. > > George Heintzelman > gah@bnl.gov > >
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