[R] xyplot without external box

Mauricio Zambrano-Bigiarini hzambran.newsgroups at gmail.com
Thu Mar 8 14:02:50 CET 2012

Dear list members,

Within a loop, I need to create an xyplot with only a legend, not even
with the default external box drawn by lattice.

I already managed to remove the axis labels and tick marks, but I
couldn't find in the documentation of xyplot how to remove the
external box.

I would really appreciate any help with this

------------- START -----------

cuts <- unique( quantile( as.numeric(x),
                           probs=c(0, 0.25, 0.5, 0.75, 0.9, 0.95, 1),
na.rm=TRUE) )

gof.levels <- cut(x, cuts)
nlevels <- length(levels(gof.levels))

xyplot(1~1, groups=gof.levels,  type="n", xlab="", ylab="",
          key = list(x = .5, y = .5, corner = c(0.5, 0.5),
                 points = list(pch=16, col=c(2,4,3), cex=1.5),
                 text = list(levels(gof.levels))

-------------  END  -----------

Thanks in advance,

Mauricio Zambrano-Bigiarini

Water Resources Unit (H01)
Institute for Environment and Sustainability (IES)
European Commission, Joint Research Centre (JRC)
webinfo    : http://floods.jrc.ec.europa.eu/
"The views expressed are purely those of the writer
and may not in any circumstances be regarded as stating
an official position of the European Commission."
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