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Re: Top 10 IDL Requests [message #21040 is a reply to message #20666]

Fri, 04 August 2000 00:00

Craig Markwardt
Messages: 1869
Registered: November 1996

Senior Member

Alex Schuster <alex@pet.mpin-koeln.mpg.de> writes:
> 5) The complement to WHERE() is great. Now I would like routines which
> give me the intersection of two arrays, the union, and the difference.
> These already exist (setintersection.pro etc.), but they were written by
> somebody and are not part of the standard distribution.
> I'd also like something like an IN operator: a IN b gives 1, if the
> scalar a is in the array b.

I agree this would be nice notation. I have a function CMSET_OP on my
web page which is more full-featured and robust than the RSI set
functions: it has "union," "intersect," and "exclusive or," plus it
works on string and float values. There was a big discussion a few
months ago about these techniques, with JD Smith being a big
contributor.

In my own personal version of CMSET_OP I have the capability to
extract array indices rather than array values, which was a requested
feature in the discussion. When the current crush of urgent work
subsides, I will post that updated version (a few days).

Craig

--
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Craig B. Markwardt, Ph.D. EMAIL: craigmnet@cow.physics.wisc.edu
Astrophysics, IDL, Finance, Derivatives | Remove "net" for better response
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[Message index]

		Top 10 IDL Requests By: davidf on Sun, 16 July 2000 00:00
		Re: Top 10 IDL Requests By: Harvey Rarback on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Phillip David on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: promashkin on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Liam E. Gumley on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Struan Gray on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Martin Schultz on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Bruce Bowler on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Larry Ashim on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Richard Tyc on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Richard Tyc on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: anne on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: wmc on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Luis Alonso on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: Olivier ARCHER on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: hcp on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: richard hilton on Tue, 18 July 2000 00:00
		Re: Top 10 IDL Requests By: dsreyn on Mon, 24 July 2000 00:00
		Re: Top 10 IDL Requests By: Jeff Guerber on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: robert.m.candey.1[2] on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: noymer on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: promashkin on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: Eric Vella on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: Michael Asten on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: Michael Asten on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: Michael Asten on Fri, 21 July 2000 00:00
		Re: Top 10 IDL Requests By: promashkin on Wed, 19 July 2000 00:00
		Re: Top 10 IDL Requests By: wmc on Wed, 19 July 2000 00:00
		Re: Top 10 IDL Requests By: kashyap on Wed, 19 July 2000 00:00
		Re: Top 10 IDL Requests By: Joseph B. Gurman on Wed, 26 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Wed, 26 July 2000 00:00
		Re: Top 10 IDL Requests By: dsreyn on Wed, 26 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Wed, 26 July 2000 00:00
		Re: Top 10 IDL Requests By: Larry Ashim on Wed, 26 July 2000 00:00
		Re: Top 10 IDL Requests By: kashyap on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: wmc on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: bradgom on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		LINUX Installation Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: Michael Asten on Tue, 25 July 2000 00:00
		Re: Top 10 IDL Requests By: Kristian Kjaer on Fri, 28 July 2000 00:00
		Re: Top 10 IDL Requests By: Nicolas Decoster on Thu, 27 July 2000 00:00
		Re: Top 10 IDL Requests By: Paul van Delst on Mon, 31 July 2000 00:00
		Re: Top 10 IDL Requests By: Mark Hadfield on Mon, 31 July 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Sun, 30 July 2000 00:00
		Re: Top 10 IDL Requests By: Liam E. Gumley on Wed, 02 August 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Wed, 02 August 2000 00:00
		Re: Top 10 IDL Requests By: Paul van Delst on Wed, 02 August 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Tue, 01 August 2000 00:00
		Re: Top 10 IDL Requests By: Liam E. Gumley on Tue, 01 August 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Tue, 01 August 2000 00:00
		Re: Top 10 IDL Requests By: Liam E. Gumley on Tue, 01 August 2000 00:00
		Re: Top 10 IDL Requests By: Michael Plonski on Tue, 01 August 2000 00:00
		Multiple Inheritance (Top 10 IDL Requests) By: Martin Schultz on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Alex Schuster on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Mark Fardal on Thu, 03 August 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Tue, 01 August 2000 00:00
		Re: Top 10 IDL Requests By: Mark Hadfield on Tue, 01 August 2000 00:00
		Re: Top 10 IDL Requests By: Mark Hadfield on Tue, 01 August 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Mon, 31 July 2000 00:00
		Re: Top 10 IDL Requests By: Paul van Delst on Mon, 31 July 2000 00:00
		Re: Top 10 IDL Requests By: Paul van Delst on Thu, 03 August 2000 00:00
		Re: Top 10 IDL Requests By: Benno Puetz on Thu, 03 August 2000 00:00
		Re: Top 10 IDL Requests By: Mark Hadfield on Thu, 03 August 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Wed, 02 August 2000 00:00
		Re: Top 10 IDL Requests By: Michael Plonski on Wed, 02 August 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: promashkin on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Stephen Serjeant on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Nicolas Decoster on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Mark Hadfield on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Nick Bower on Fri, 04 August 2000 00:00
		Re: Top 10 IDL Requests By: Jeff Guerber on Thu, 03 August 2000 00:00
		Re: Top 10 IDL Requests By: dominik on Mon, 07 August 2000 00:00
		Re: Top 10 IDL Requests By: ottehoman on Fri, 11 August 2000 00:00
		Re: Top 10 IDL Requests By: Craig Markwardt on Thu, 10 August 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Thu, 10 August 2000 00:00
		Re: Top 10 IDL Requests By: John-David T. Smith on Thu, 10 August 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Thu, 10 August 2000 00:00
		Re: Top 10 IDL Requests By: ottehoman on Thu, 10 August 2000 00:00
		Re: Top 10 IDL Requests By: davidf on Sat, 12 August 2000 00:00
		Bottom 10 IDL requests ;-) was: Re: Top 10 IDL Requests By: wmc on Fri, 11 August 2000 00:00

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