[R] plot() - thicker points when pair exist more than 1 time?

[baptiste auguie]

on suitable devices, you could consider transparency,

plot(f,col=alpha("grey",0.8),pch=19)



baptiste
On 24 Apr 2009, at 14:09, Knut Krueger wrote:

> f<-  data.frame("x"=c(1,3,5,6,1),"y"=c(1,2,3,4,1))
> plot(f)