[EMAIL PROTECTED] a écrit :
> Hi,
>
> How can we plot two graphs ex. lets say correlation & ratio in the same 
> window?
>
> I mean in the window I have :
>
> 1. Graph of correlation having X & Y axes
>
> 2. Graph of ratio having A & B axes
>
> one above the other.
>
> Thanks,
> Sonal
>
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> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>   
Hi,
you can simply do that using the command par(new=TRUE) between your two 
graphs.
example :
x<-rnorm(100,0,2)
y<-2*x+rnorm(100,0,2)
plot(y~x)
par(new=TRUE)
z<-rnorm(100,10,2)
plot(z,col='red')

As you can notice the second plot is roughly added to the new one, even 
if the scales are different. So you basically have to specify the axes 
of the second plot, using the axis() command (after specifying xaxt='n' 
and yaxt='n' in the second plot for removing its axes).


Tristan

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