I have a matrix(3000x2) of numbers and I have plotted a scatterplot (defined in the ``car'' library.)
scatterplot(r$V1,r$V2,ellipse=TRUE) The ellipse plotted is an error ellipse. I want the find the major(semi), minor(semi) minor axis length of this ellipse. Does anybody know how to do it? I can get the center of this ellipse using the cov.trob function (defined in ``MASS'' library), and with some formula, also the Angle of Rotation of the error ellipse. Any help on finding the major, minor axis lenght of the ellipse greatly appreciated!! Thank you! Vishal. ______________________________________________ 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.
