[R] how to draw an ellipse

[Romain Francois]

Le 18.08.2005 15:45, Guillaume Allain a écrit :

>That's probably a stupid question, but I'm looking for a low-level 
>command which plots ellipse, specifying only center and deformation 
>axes. The purpose is to illustrate bivariates gaussians with 2D .95 
>confident levels without using any specific library.
>
>Thanxs for your help,
>
>Guillaume
>  
>
Hello,

Why don't you want to use any specific library ? You can't reinvent the 
wheel !!
There is a package ellipse on CRAN which will do what you are looking for.
Have you tried
 > RSiteSearch("ellipse")

Cheers,

Romain

-- 
visit the R Graph Gallery : http://addictedtor.free.fr/graphiques
~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~
~~~~~~      Romain FRANCOIS - http://addictedtor.free.fr         ~~~~~~
~~~~        Etudiant  ISUP - CS3 - Industrie et Services           ~~~~
~~                http://www.isup.cicrp.jussieu.fr/                  ~~
~~~~           Stagiaire INRIA Futurs - Equipe SELECT              ~~~~
~~~~~~   http://www.inria.fr/recherche/equipes/select.fr.html    ~~~~~~
~~~~~~~~ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ~~~~~~~~