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Re: about co-occurance matrix [message #60154 is a reply to message #60022]

Sun, 27 April 2008 20:00

David Fanning
Messages: 11724
Registered: August 2001

Senior Member

Magic.Zhou@gmail.com writes:

> is there anyone who can give me some idea about how to program a
> 256*256 co-occurance matrix? mine takes quite a long time, and now it
> is still working......probably it is wrong:(

Well, given this definition of a occurrence matrix:

http://en.wikipedia.org/wiki/Co-occurrence_matrix

I would say I would create a occurrence matrix of A1
and A2, with no offsets like this:

matrix = A1 EQ A2

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]

		about co-occurance matrix By: Magic.Zhou on Sun, 27 April 2008 01:01
		Re: about co-occurance matrix By: David Fanning on Mon, 28 April 2008 11:49
		Re: about co-occurance matrix By: Bob[3] on Mon, 28 April 2008 11:48
		Re: about co-occurance matrix By: David Fanning on Sun, 27 April 2008 20:10
		Re: about co-occurance matrix By: David Fanning on Sun, 27 April 2008 20:03
		Re: about co-occurance matrix By: David Fanning on Sun, 27 April 2008 20:00
		Re: about co-occurance matrix By: Magic.Zhou on Sun, 27 April 2008 19:34

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