[R] 3d trend line

[mlcarte3]

Which line do you want?  There's more than one choice.  For example, you 
could regress y and z on x, or you could find the principle axis of the 
x, y, z point cloud.

Duncan Murdoch


Thanks for the response. I need to find the principal axis for the point
cloud. How can I plot this in R?

Thanks a lot.
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