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Re: Random selection [message #51253 is a reply to message #51251]

Sat, 11 November 2006 05:30

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

David Fanning writes:

> Like this:
>
> indices = Randomu(seed, 100) * 1000
> selected = array[*,indices]

Well, it probably should be

indices = (Round(Randomu(seed, 100) * 1000) < 999

But you get the idea. :-)

Cheers,

David
--
David Fanning, Ph.D.
Fanning Software Consulting, Inc.
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Sepore ma de ni thui. ("Perhaps thou speakest truth.")

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[Message index]

		Re: Random selection By: greg michael on Sun, 12 November 2006 05:07
		Re: Random selection By: Julio[1] on Sun, 12 November 2006 04:57
		Re: Random selection By: Kenneth P. Bowman on Sat, 11 November 2006 20:09
		Re: Random selection By: David Fanning on Sat, 11 November 2006 14:09
		Re: Random selection By: Jean H. on Sat, 11 November 2006 13:25
		Re: Random selection By: David Fanning on Sat, 11 November 2006 13:08
		Re: Random selection By: Jean H. on Sat, 11 November 2006 12:45
		Re: Random selection By: David Fanning on Sat, 11 November 2006 05:30
		Re: Random selection By: greg michael on Sat, 11 November 2006 05:28
		Re: Random selection By: David Fanning on Sat, 11 November 2006 05:23
		Re: Random selection By: JD Smith on Mon, 13 November 2006 10:46

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