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Re: Efficient comparison of arrays / Set operations [message #9916 is a reply to message #9863]

Wed, 10 September 1997 00:00

davidf
Messages: 2866
Registered: September 1996

Senior Member

Saeid Zoonematkermani writes:

>> Research Systems Inc. writes:
>>
>>> Below appear three IDL functions that operate on sets represented by
>>> arrays of positive integers. The SetIntersection(a,b) function
>>> returns the common elements, SetUnion(a,b) returns all unique elements
>>> in both arguments, and SetDifference(a,b) returns the elements
>>> (members) in a but not in b.
>>
>
> Ooops! I was gone for a while and missed the posting of the above
> functions. Could some one repost the functions, or make them available at
> a web site some where. Thanks,

You can find them on my web page. The URL is:

http://www.dfanning.com/tips/set_operations.html

Cheers,

David

------------------------------------------------------------ -----
David Fanning, Ph.D.
Fanning Software Consulting
Customizable IDL Programming Courses
Phone: 970-221-0438 E-Mail: davidf@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com

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[Message index]

		Re: Efficient comparison of arrays / Set operations By: J.D. Smith on Mon, 01 September 1997 00:00
		Re: Efficient comparison of arrays / Set operations By: davidf on Fri, 29 August 1997 00:00
		Re: Efficient comparison of arrays / Set operations By: Research Systems Inc. on Fri, 29 August 1997 00:00
		Re: Efficient comparison of arrays / Set operations By: davidf on Wed, 10 September 1997 00:00
		Re: Efficient comparison of arrays / Set operations By: szoonem on Wed, 10 September 1997 00:00

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