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Re: [HACKERS] Standard Deviation function.

From: Bruce Momjian <maillist(at)candle(dot)pha(dot)pa(dot)us>
To: stuporg(at)erols(dot)com (Stupor Genius)
Cc: pgsql-hackers(at)postgresql(dot)org
Subject: Re: [HACKERS] Standard Deviation function.
Date: 1998-06-05 03:24:16
Message-ID: 199806050324.XAA08729@candle.pha.pa.us (view raw or flat)
Thread:
Lists: pgsql-hackers
> I had asked you how to calculate this and the variance early last
> year.  One (I think the variance) was two-pass because of the need
> for the average, but I thought the StdDev would work with the struct.

Variance is just square of std. dev, no?

> 
> Been a while and I still haven't configured #(*&^ FreeBSD ppp yet.

Bummer.

-- 
Bruce Momjian                          |  830 Blythe Avenue
maillist(at)candle(dot)pha(dot)pa(dot)us              |  Drexel Hill, Pennsylvania 19026
  +  If your life is a hard drive,     |  (610) 353-9879(w)
  +  Christ can be your backup.        |  (610) 853-3000(h)

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