[R] find points on a graph

[Milan Bouchet-Valat]

Le mercredi 07 mars 2012 à 01:40 -0800, aoife a écrit :
> Hey guys, Can anyone help?
> 
> I did a correspondance analysis and made a plot. 
> 
> I also have a specific list of nodes that i want to find in my plot and want
> to either color the nodes that appear in my list differently, or put some
> kind of border around that group of nodes...
> 
> Would anyone know how to do this?
Not if you don't tell us what package and function you used for this CA.
Can you provide a small reproducible example?

Regards