Rene: Thanks for telling me that the only way to scale a TProfile in a 1D sense is to convert it to a 1D. This is what I suspected in my original mail. The behavior of TProfile::Scale() is correct if you think of a profile only as the mean of the y of a 2D vs. x. But many of us use a profile histogram to calculate the mean of any quantity vs. x. We fill the profile with the quantity as the weight. Then manipulations, like Scale() of the contents, make sense. Thus, I think, it would be good to have a TProfile function to transform to a 1D, so that 1D style manipulations could be done. I suggest this for a future improvement. Art Brun wrote: > Art, > > The behaviour of TProfile::Scale is correct in PAW and Root. > > Rene Brun > > Art Poskanzer wrote: > > > > > Is the only way to convert it to loop over the bins getting each > > > content and error and putting them into the 1D? > > > > > > Art Poskanzer and Glenn Cooper
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