comp.lang.idl-pvwave archive: archive » The intersection of 2 arrays

Home » Public Forums » archive » The intersection of 2 arrays

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

The intersection of 2 arrays [message #8357]

Mon, 03 March 1997 00:00

Phil Williams
Messages: 78
Registered: April 1996

Member

I know that I can find the union of two arrays by doing something like

temp = [array1, array2]
union = temp(uniq(temp, sort(temp)))

But how would I go about finding the intersection of the two arrays?
i.e. Is there a nice vector way of doing it rather than brute force?
(aka: Which IDL function did I miss this time?)

Thanks in advance,
Phil
--
/*********************************************************** ********/
Phil Williams, Ph.D.
Research Instructor
Children's Hospital Medical Center "One man gathers what
Imaging Research Center another man spills..."
3333 Burnet Ave. -The Grateful Dead
Cincinnati, OH 45229
email: williams@irc.chmcc.org
URL: http://scuttle.chmcc.org/~williams/
/*********************************************************** ********/

Report message to a moderator

[Message index]

		The intersection of 2 arrays By: Phil Williams on Mon, 03 March 1997 00:00
		Re: The intersection of 2 arrays By: James Tappin on Thu, 06 March 1997 00:00
		Re: The intersection of 2 arrays By: wonko on Tue, 04 March 1997 00:00
		Re: The intersection of 2 arrays By: J.D. Smith on Tue, 04 March 1997 00:00
		Re: The intersection of 2 arrays By: Marty Ryba on Tue, 04 March 1997 00:00

Previous Topic:	undefining variables
Next Topic:	size of usersym symbols

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Fri Oct 10 10:10:26 PDT 2025

Total time taken to generate the page: 0.64100 seconds