Standard Deviation/Variance function development

From: GH <grasshacker(at)over-yonder(dot)net>
To: pgsql-general(at)postgresql(dot)org
Subject: Standard Deviation/Variance function development
Date: 2001-03-07 02:01:26
Message-ID: 20010306200126.B14771@over-yonder.net
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Has anybodys grabbed development of a standard deviation/variance
calculation function?
If not, I am interested in tacking it on my todo list.

What would be involved?
That is, should it be written in C or in PL/PgSQL, or what?
(I imagine that C would be fastest, no?)

Cheers,
dan

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