[R] plot question

[Uwe Ligges]

Myriam Abramson wrote:
> 
> Hi!
> 
> I want to display 2 graphs with different number of data points on the
> x-axis. The code below scales them so it seems that testtwo has the
> same number of data points as testone. How can I fix that? thanks.
> 
> z<-1:50;
> x<-1:100;
> plot(x,testone,type="l",xlab="",ylab="",main="",lty=4,axes=FALSE,ylim=c(-1.0,1.0),cex=1);
> par(new=TRUE);
> plot(z,testtwo,type="l",xlab="",ylab="",main="",lty=1,col="red",axes=FALSE,ylim=c(-1.0,1.0),cex=1);
> xlabels<-x*10;
> axis(1,1:100,xlabels);
> axis(2);
> box();
> --

You can additionally set xlim, but the better way is to add "testtwo"
with lines() or points():

 z <- 1:50
 x <- 1:100

plot(x,testone,type="l",xlab="",ylab="",main="",lty=4,xaxt="n",ylim=c(-1.0,1.0),cex=1)
 lines(z, testtwo, lty=1, col="red", cex=1)
 xlabels <- x*10
 axis(1,1:100,xlabels)

Uwe Ligges
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