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Re: Source for reverse_indices [message #45108] Fri, 12 August 2005 13:36
R.Bauer is currently offline  R.Bauer
Messages: 1424
Registered: November 1998
Senior Member
the_cacc@hotmail.com wrote:

> I've been looking on the web for a C (or any!) code of histogram that
> does the same thing as reverse indices. Without luck, I might add. Does
> anyone know where I can find it?

In idl it would be

y=findgen(100)
n=n_elements(y)
idx=max(y)-indgen(n)
reverse=y[idx]

cheers
Reiamr

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Re: Source for reverse_indices [message #45129 is a reply to message #45108] Thu, 11 August 2005 05:35 Go to previous message
marc schellens[1] is currently offline  marc schellens[1]
Messages: 183
Registered: January 2000
Senior Member
Joel Gales has implemented HISTOGRAM
including REVERSE_INDICES for GDL:

http://sourceforge.net/projects/gnudatalanguage

the relevant code if in src/gsl_fun.cpp
Of course this is within the GDL framework but
maybe it helps you to get the idea.

Cheers,
marc

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