[R] plot

[Uwe Ligges]

NICOLAS DEIG wrote:

> hello,
> 
> I wonder whether there is a way to plot in R the following:
> 
> I have two arrays of dimension (200*1) say x1 and x2.
> I would like to plot on the same graph x1[1:50,]*x2[1:50,] with pch=1  
>                         
> 
>                                        x1[51:100,]*x2[51:100,] with pch=2
>                                      x1[101:150,]*x2[101:150,] with pch=3
>                                       x1[151:200,]*x2[151:200,] with pch=4

You can specify pch in form of a vector (as long as x1) as in:

plot(1:10, pch=rep(1:2, each=5))

Uwe Ligges


> is it possible with the "plot" function? Or do I have to plot
> 4differents graphs?
> THanks in advance.
> nicolas
> 
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