Re: How do I fit a line through three points in space?
From: Gottfried Helms (helms_at_uni-kassel.de)
Date: 09/18/04
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Date: Sat, 18 Sep 2004 10:44:46 +0200
Am 17.09.04 11:03 schrieb Red B.:
> Hi all!
>
> How do I go about fitting a straight line (vector) through three
> points in space? Each of the three points is given by three
> coordinates (x,y,z) that are measured with some uncertainty.
> The textbooks I have all discuss using the method of least squares for
> fitting a straight line through a number of (x,y) points in a plane
> but I need a method that works in three dimensions.
>
> Although this is probably a trivial problem for you mathematicians I
> would appreciate any help you can offer.
>
> /Red B.
With two coordinates it's just linear regression, with more coordinates
is's multiple regression or pca (depending on the distance-measure).
Gottfried Helms
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