Re: Variance Function
| From: | tedd | Date: | Sat, 13 Jan 2007 20:15:15 +0000 |
| Subject: | Re: Variance Function | ||
| References: | 1 2 | Groups: | php.general |
| Request: | Send a blank email to php-general+get-247044@lists.php.net to get a copy of this message | ||
At 4:19 AM +0000 1/12/07, Andrew Brampton wrote:
----- Original Message ----- From: "Richard Lynch" <ceo@l-i-e.com> To: <php-general@lists.php.net> Sent: Thursday, January 11, 2007 11:29 PM Subject: [PHP] Variance FunctionVery 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 -- ------- http://sperling.com http://ancientstones.com http://earthstones.comAny 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-