Don, If the data is can be mapped as 2D or 3D Cartesian coordinates, you could use spatial operators from PostGIS.
Rick Don Isgitt <[EMAIL PROTECTED] To: Robert Fitzpatrick <[EMAIL PROTECTED]> om> cc: PostgreSQL <[EMAIL PROTECTED]> Sent by: Subject: Re: [real] [GENERAL] Outliers of data [EMAIL PROTECTED] tgresql.org 10/21/2004 01:55 PM Robert Fitzpatrick wrote: >I have a project where it is necessary to determine Outliers of lab >results and looking for some pointers on the best way to handle this >type of calculation with PostgreSQL. Possibly an operator? I have no >experience with that. I found some info on the web for calculating >Outliers, here is one of them... > >http://cc.uoregon.edu/cnews/spring2000/outliers.html > > > Hi Robert, You may want to consider the R language interface (pl/R); R (the language) has great tools for detecting and operating on outliers. Don ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings