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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