[R] Mac OS X: Clearing R Console screen

[Jesse Sinclair]

Hi all,
I'm trying to figure out how to clear the console (screen) in the Mac  
OS X R console. Using ctrl-l does not work. I have also tried system 
(clear) but, I get  TERM environment variable not set., I find  
this a bit strange because system(ls) and other bash commands work  
fine. When using R in Terminal or iTerm, the system(clear) works  
great. Any ideas on how to get the R Console to clear, or how to set  
the TERM variable? I see others have had similar issues but, can't  
seem to find the solution. Thanks!

Jesse

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[R] Labelling a second y-axis

[Jesse Sinclair]

Hi,
I am using the following code as an example function to create  
multiple y-axes on one plot. I have it working fine however, I can't  
seem to add a label on the second (right) axis. I have tried adding  
ylab=y2 in the axis call but, that didn't work; any ideas?

Thanks,

Jesse

Code:
function() {
par(las=1,xaxs=r,mai=c(1,0.75,1,1))
x-1:10
y1-x
y2-x^2
plot(x,y1,xlim=c(0,10),ylim=c(0,10),ylab=y1)
title(main=Multiple Y-Axes in R,ylab=y2)
par(new=TRUE)
plot(x,y2,xlim=c(0,10),xaxt=n,yaxt=n,ylab=,pch=16)
axis(4,at=c(0,20,40,60,80,100))
}

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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.