At 4:19 AM +0000 1/12/07, Andrew Brampton wrote:
----- Original Message ----- From: "Richard Lynch" <[EMAIL PROTECTED]>
To: <php-general@lists.php.net>
Sent: Thursday, January 11, 2007 11:29 PM
Subject: [PHP] Variance Function
Any advice?
Anybody got a good "variance" function to do what I'm trying to do?
Hey,
I've seen you solve many questions on this list, and I feel honour
to be able to try and help :)
Well the solution that pops into my head is clustering. Since you
have a set of numbers and 1 or more of them may be abnormal, then
you can cluster them into one or more groups of similar values.
-snip-
Very impressive work Andrew.
You might also look into cluster analysis, which will also provide
the degree of similarity between items. It's often surprising how
hidden data falls out of such analyses.
Cheers,
tedd
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