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Jay
----- Original Message -----
From: "Rod Roark" <rod@sunsetsystems.com>
To: <vox-tech@lists.lugod.org>
Sent: Friday, March 21, 2003 4:01 PM
Subject: Re: [vox-tech] OT - Finding slope of a line, with lots of points


"least squares".

-- Rod

On Friday 21 March 2003 01:52 pm, Jay Strauss wrote:
> Sorry, I already googled, but can't find what I'm looking for.
>
> I remember back in science class (must have been Chem), we'd do
experiments
> and plot a bunch of points on graph paper.  Then we'd fudge a line that
> went thru the points (trying to get equal numbers of points on one side of
> the line as the other), and that was our "expected" slope.
>
> Is there some formula or algorithm for doing this with a computer? (I'll
do
> it in Perl)  Or where, under what topic would I go a googling?
>
> Thank
> Jay

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