[R] mtext and srt

[Uwe Ligges]

"Richards, Tom" wrote:
> 
> Hello:
> 
> I am trying to get some text at an angle in the margins of a plot.  I was
> accustomed under older versions of Splus to using srt in the mtext command,
> but that seems not to work under R,
> 
> > version
>          _
> platform i386-pc-mingw32
> arch     x86
> os       Win32
> system   x86, Win32
> status
> major    1
> minor    3.0
> year     2001
> month    06
> day      22
> language R
> 
> I see documented in ?mtext that one can use the las parameter to get text
> either parallel to or perpendicular to the axis in question, but is there
> any way to get other angles as well?  I want the two letter "X"'s to have
> the same angle in the following:
> 
> plot(1:10,1:10)
> text(5,5,"X",srt=30)
> mtext("X",side=3,at=5,srt=30)
> 
> Can this be done in R?  Thanks for your response.

Use text() instead of mtext() as follows:

  text(5, par("usr")[4], "X", srt = 30, xpd = TRUE, pos = 3)


Uwe Ligges
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