[R] Beginners questions on matplot and legend

[judith.baltsar@gmx.de]

Dear list members,
I have a problem that is probably simple to solve but at the moment 
I have no clue at all:

I have done a simple matplot
matplot(x,y,pch=symb, xlab="Axis 1", ylab="Axis 2", main="PCA of 
plot x trait matrix")
x has the X-axis values, y has four columns of y-values and now I 
want to have a simple legend for the four symbols defined by symb. 
Easy probably, but maybe someone can give me a hint.

Thank you very much
Judith