[R] maths characters in labels & ylab padding

[Mike Meredith]

Help on this is in

?plotmath

You can use 

ylab = expression("Y Label   " (m^2))

Use par(mar..) to increase the margin width, and then mtext to place y axis
label:

y <- 1:10 
x <- rnorm(10,50000,2000) 
par(mar = c(5,6,4,2) + 0.1)
plot(x ~ y, 
   ylab = "", 
   las = 1, 
   type = "n", 
   bty = "n" 
) 
mtext(expression("Y Label   " (m^2)), side = 2, line = 4)

If you use this within a function, you'll probably want to reset the margins
on exit:

old.mar <- par(mar = c(5,6,4,2) + 0.1) ; on.exit(par(old.mar))

HTH, Mike.


Murray Pung wrote:
> 
> I have checked out the help files, but cannot find details on how to use
> maths characters in ylab. Instead of m^2, I would like the 2 in
> superscript,
> if possible. I would also like to place more padding on the label so that
> the label is not obscured by the horizontal numbers.
> 
> 
> y <- 1:10
> x <- rnorm(10,50000,2000)
> plot(x ~ y,
>     ylab = 'Y Label (m^2)',
>     las = 1,
>     type = "n",
>     bty = "n"
>     )
> 
> 
> Thanks
> Murray
> 
> -- 
> Murray Pung
> Statistician, Datapharm Australia Pty Ltd
> 0404 273 283
> 
> 	[[alternative HTML version deleted]]
> 
> ______________________________________________
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> PLEASE do read the posting guide
> http://www.R-project.org/posting-guide.html
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> 
> 

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