On 21/01/2010 2:43 PM, mlcarte3 wrote:
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.
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 ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
