[R] Where can I download/install grDevices

[Lizblip]

djmuseR wrote:
> 
> 
> Here's one way:
> 
>  plot(1~1,ylab=expression("Areas ("~mu*m^2~")"))
> 
> The tildes incorporate space between the math and text elements; they're
> optional, but useful. 
> 
> 

This worked, thanks! 
Elizabeth

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