Don,
If the data is can be mapped as 2D or 3D Cartesian coordinates, you could
use spatial operators from PostGIS.
Rick
Don Isgitt
<djisgitt@soundenergy.c To: Robert Fitzpatrick <robert@webtent.com>
om> cc: PostgreSQL <pgsql-general@postgresql.org>
Sent by: Subject: Re: [real] [GENERAL] Outliers of data
pgsql-general-owner@pos
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
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