corr() in 8.1

From: "SunWuKung" <Balazs(dot)Klein(at)gmail(dot)com>
To: pgsql-general(at)postgresql(dot)org
Subject: corr() in 8.1
Date: 2007-04-12 20:12:59
Message-ID: 1176408779.124798.169690@l77g2000hsb.googlegroups.com
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Is there an easy way to have the corr() statistical function in 8.1?
(I know very little about compiling things.)
Or does somebody have a custom aggregate function for that?

Thanks for the help.
SWK

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