Re: [R] 3d trend line

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? Thank

[R] 3d trend line

I have a 3d scatter plot and I need to add a trend line. I can add a regression plane, but I need a line, not a plane. Thanks. -- View this message in context: http://n4.nabble.com/3d-trend-line-tp1053686p1053686.html Sent from the R help mailing list archive at Nabble.com. ___