[R] plot/screen

[Luis Silva]

Dear helpers

I have this code to make 10 plots in the same device

a<-1
split.screen(c(2:5))
for (i in 1:10){
nova.matriz<-a*sigma+(1-a)*S
proj<-calculo.comp(treino,nova.matriz)
print(proj[,1:2])
screen(i)
plot(Re(proj[c(2,3,6,9:11,14,23),1:2]),xlim=range(c(-
15:15)),ylim=range(c(-5:5)),col="black")
points(Re(proj[c(1,4:5,7:8,12:13,15:22,24:27),1:2]),col="red")
points(Re(proj[28:38,1:2]),col="blue")
a<-a-.1
}

Is this the best way to do it? And I have this problem. It only 
plots 6 screens and then gives an error
"Error in plot.new() : Figure margins too large"

The idea is to make 10 plots being a function of parameter a. 
It goes from 1 to zero. I've already started at zero and gone 
to 1 but it happens the same thing.

Any hints?
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