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Re: Fast Implementation [message #31415 is a reply to message #31413]

Fri, 05 July 2002 09:22

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Isa Usman (I.Usman@rl.ac.uk) writes:

> I have the bit of code below which calculates the number of points in all
> four quandrants of a 2d space. Unfortunately my arrays are very large and it
> takes quite a while to run.Is there a way of making the code faster.

If you normalize your quadrant to 1, and take a bin size
of 0.5, then a Histogram would give you the answer in, oh,
0.00005 seconds. :-)

Cheers,

David
--
David W. Fanning, Ph.D.
Fanning Software Consulting, Inc.
Phone: 970-221-0438, E-mail: david@dfanning.com
Coyote's Guide to IDL Programming: http://www.dfanning.com/
Toll-Free IDL Book Orders: 1-888-461-0155

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[Message index]

		Re: Fast Implementation By: Sven Geier on Tue, 09 July 2002 14:58
		Re: Fast Implementation By: Sven Geier on Tue, 09 July 2002 14:45
		Re: Fast Implementation By: Dick Jackson on Fri, 05 July 2002 10:48
		Re: Fast Implementation By: Pavel A. Romashkin on Fri, 05 July 2002 10:06
		Re: Fast Implementation By: David Fanning on Fri, 05 July 2002 10:06
		Re: Fast Implementation By: David Fanning on Fri, 05 July 2002 09:22

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