[vox-tech] OT - Finding slope of a line, with lots of points

Rod Roark vox-tech@lists.lugod.org
Fri, 21 Mar 2003 14:01:39 -0800


"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