> -----Original Message-----
> From: Dennis Murphy [mailto:djmu...@gmail.com]
> Sent: Tuesday, November 15, 2011 8:54 PM
> To: Andy Bunn
> Cc: r-help@r-project.org
> Subject: Re: [R] equal spacing of the polygons in levelplot key
> (lattice)
>
> Hi:
>
> Does this work?
Thanks Dennis.
This almost works. Is there a way to make the rectangles in the key the same
size? In this example five rectangles of the same area evenly arrayed? Can the
key be coerced into being categorical?
The data I want to work with are not spatial but it occurs to me that this is a
common mapping task (e.g., in this example you might want to label these colors
'low', 'kind of low', 'medium low', etc. or map land covers or such.) I'll look
at the sp or raster plotting equivalent.
>
> # library('lattice')
> levs <- as.vector(quantile(volcano,c(0,0.1,0.5,0.9,0.99,1)))
> levelplot(volcano, at = levs,
> colorkey = list(labels = list(at = levs,
> labels = levs) ))
>
> HTH,
> Dennis
>
> On Tue, Nov 15, 2011 at 1:12 PM, Andy Bunn <andy.b...@wwu.edu> wrote:
> > Given the example:
> > R> (levs <- quantile(volcano,c(0,0.1,0.5,0.9,0.99,1)))
> > 0% 10% 50% 90% 99% 100%
> > 94 100 124 170 189 195
> > R> levelplot(volcano,at=levs)
> >
> > How can I make the key categorical with the size of the divisions
> equally spaced in the key? E.g., five equal size rectangles with labels
> at levs c(100,124,170,189,195)?
> >
> > Apologies if this is obvious.
> >
> > -A
> >
> > R> version
> > _
> > platform i386-pc-mingw32
> > arch i386
> > os mingw32
> > system i386, mingw32
> > status
> > major 2
> > minor 14.0
> > year 2011
> > month 10
> > day 31
> > svn rev 57496
> > language R
> > version.string R version 2.14.0 (2011-10-31)
> >
> > ______________________________________________
> > R-help@r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-help
> > PLEASE do read the posting guide http://www.R-project.org/posting-
> guide.html
> > and provide commented, minimal, self-contained, reproducible code.
> >
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