[R] plots

[statistical.model@googlemail.com]

Hi all,
I have a basic question. how can i visualize two or more density curves on
the same plot?

ex:
x1<-runif(100,10,80)
x2<-runif(100,1,100)
kernelgraf<-density(x1,kernel = "gaussian", width= 20)
plot(kernelgraf, xlab="Probability", xlim=c(0,100), ylim=c(0,.1),
col=rgb(0,1,0), main="")
kernelgraf<-density(x2,kernel = "gaussian", width= 20)
points(kernelgraf, xlab="Probability", xlim=c(0,100), ylim=c(0,.1),
col=rgb(0,0,1), main="")

here i am using plot + points, but i do not like the graphical output for
points.

can anybody help me?

thanks in advance

Roberto Furlan
University of Turin


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