[R] draw ellipse of equal concentration

From: Salvatore Ingrassia <s.ingrassia_at_unical.it>
Date: Wed 27 Jul 2005 - 03:49:12 EST

Dear all,

do you know some routines to draw ellipses and its axes given the algebraic equation? The application is to draw ellipses of equal concentration for bivariate normal distribution given the vector mean and the covariance matrix.

Thank you. Sincerely, Salvatore Ingrassia

Prof. Salvatore Ingrassia
Dipartimento di Economia e Statistica
FacoltÓ di Economia
Universita' della Calabria                                       
87036 Arcavacata di Rende (CS), Italy                                       
Tel. +39 0984 492432    Fax +39 0984 492421
e-mail: s.ingrassia@unical.it      


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