Hi PDL folks,

I am beginning some development of applications using PDL, which I'm
pretty excited about using since a) it's free, and b) I've always liked
Perl syntax.

I have previously done a lot of work in IDL, and one of the greatest
tools available in that language is a little routine called HIST_ND,
which (a) delivers N-dimensional histograms, and (b) can output "reverse
indices." (indices to match each element of the input to its respective
histogram bin). I see that PDL has histogram functions, but I wonder if
these two features have been implemented.

Thanks for your great work,

--Edward H.

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