Re: [R] Fit elipse to xy scatter

2011-07-24 Thread Dieter Menne
DrCJones wrote: > > hat I would like to do is fit an elipse to two lines of identity (at right > angles to each other), as indicated in the following figure: > http://imageshack.us/photo/my-images/30/poincareplotwip.png/ > > http://r-project.markmail.org/thread/kpg3ea665y2ud6cz or, for a robu

Re: [R] Fit elipse to xy scatter

2011-07-23 Thread Rolf Turner
(1) The ellipse package, according to its DESCRIPTION file, is a package of ``Functions for drawing ellipses and ellipse-like confidence regions''. It has nothing to do with *fitting* ellipses. (2) What on earth do you mean by ``fit an elipse (sic) to two lines of identity''? (3) There are

[R] Fit elipse to xy scatter

2011-07-23 Thread DrCJones
Hi, I know there is a package 'elipse' available but I'm not sure how to use it for my specific implementation. What I would like to do is fit an elipse to two lines of identity (at right angles to each other), as indicated in the following figure: http://imageshack.us/photo/my-images/30/poinca