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Re: sorting of a multi-dimensional array in only one "direction"/dimension [message #41910 is a reply to message #41906]

Thu, 02 December 2004 08:50

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Timm Weitkamp writes:

> There may be better ways, but this here does the job without a loop
> (assuming you have IDL 5.6 or higher):
>
> tot = TOTAL(imgs, 3)
> min = MIN(imgs, DIMENSION=3)
> max = MAX(imgs, DIMENSION=3)
> avg = (tot - min - max) / 3.0

This reminds me...

I'm making notes for a 3nd Edition of my book.
(Don't hold your breath, the outline is grandiose,
so who knows if it will really happen. IDL has gotten
so BIG!) One of my proposed chapters is "The IDL Way:
Writing Code to Confuse Your Boss and Amaze Your Friends".
This is the kind of material I'd like to have in there,
not so much to be instructive, but to give people an
idea of how these kinds of problems are solved.

I've saved these kinds of nuggets over the years,
but I can use more. Does anyone have a good story
to tell of how code that took days to run and pages
to write ran in seconds with five lines of IDL code?
(After consulting the IDL newsgroup, of course.)

I'd offer a prize, but I'm not drinking coffee or
beer anymore after returning from Germany. I am
completely disillusioned with what passes for both
in America. :-(

Cheers,

David

P.S. Any you can throw in bread, too. :-)
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/

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[Message index]

		Re: sorting of a multi-dimensional array in only one "direction"/dimension By: JD Smith on Thu, 02 December 2004 08:10
		Re: sorting of a multi-dimensional array in only one "direction"/dimension By: Timm Weitkamp on Thu, 02 December 2004 07:46
		Re: sorting of a multi-dimensional array in only one "direction"/dimension By: David Fanning on Thu, 02 December 2004 08:50

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