Re: [R] Fitting a half-ellipse curve

Hello Michael, Thanks very much for the hint to my problem this helps really a lot. Cheers Niklaus -- Niklaus Hürlimann Doctorant-PhD Université de Lausanne Institut de Minéralogie et Géochimie L'Anthropole CH-1015 Lausanne Suisse E-mail: niklaus.hurlim...@unil.ch Tel:+41(0)21 692 4452

Re: [R] Fitting a half-ellipse curve

Hello Niklaus, I'm not sure if the following is the sort of thing you are looking for (?) You can fit an ellipse to your data using a deterministic least squares method. The following is a function that I use to do this... fit.ellipse <- function (x, y = NULL) { # Least squares fitting of an ell