[R] width and length arguments to postscript()

[ripley@stats.ox.ac.uk]

There are lots of examples in MASS of doing this for spatial data.  Use
eqscplot (from MASS) with type="n", then contour(add=T)

On Fri, 13 Dec 2002, Robin Hankin wrote:

> Hi everyone
>
> This must be a FAQ but I can't find it anywhere...
>
> I want a postscript image of a contour() plot, with axes of equal
> length. Try
>
> R> postscript(file="~/f.ps")
> R> contour(matrix(rnorm(100),10,10))
> R> dev.off()
>
> This isn't what I want: the plotting region is, as documented, quarter
> of an inch shy of the paper edge and the axes appear to be different
> lengths.  contour() doesn't take a "asp" argument.
>
> postscript() does have a width and a length argument but I can't make
> them work as I want:
>
> R> postscript(file="~/f.ps",width=5,height=5)
> R> contour(matrix(rnorm(100),10,10))
> R> dev.off()
>
> gives axes of about 96mm by 80mm (on A4 paper).
>
> What do I have to do to get square contour plots on a postscript file?
>
> --
>
> Robin K. S. Hankin, Lecturer,
> School of Geography and Environmental Science
> Tamaki Campus
> Private Bag 92019 Auckland
> New Zealand
>
> r.hankin at auckland.ac.nz
> tel 0064-9-373-7599 x6820; FAX 0064-9-373-7042
>
> as of: Fri Dec 13 11:07:00 NZDT 2002
> This (linux) system up continuously for:  470 days, 16 hours, 49 minutes
>
> ______________________________________________
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>

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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