[R] linear and non linear regression in 3D !
Param Priya Singh
parampriya_singh at persistent.co.in
Tue Jul 15 13:41:56 CEST 2008
Hi All,
I have to draw a best fit line in a helix that will tell the axis of the
helix and a
curve that will tell the curvature of the helix. I suppose I have to do
linear and
non linear regression in 3D space for this ?
I have coordinates in following structure
'data.frame': 24 obs. of 3 variables:
$ x: num 17.5 18.3 21.0 23.1 23.2 ...
$ y: num 40.0 43.5 43.8 41.0 43.0 ...
$ z: num 37.3 36.0 38.7 37.1 33.9 ...
I could draw the helix but could not do regression. Please help !
Thanks in anticipation.
-Param
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