[Rd] Surprising behaviour of levelplot in lattice package

Deepayan Sarkar deepayan.sarkar at gmail.com
Wed Feb 13 20:44:08 CET 2008


On 2/13/08, Wolfgang Huber <huber at ebi.ac.uk> wrote:
> Hi Deepayan,
>
> levelplot from the lattice package produces a peculiar output when
> called on a matrix whose column or row names contained duplicated
> elements. In particular, the plot contains white stripes, and the
> arrangement of data regions and axes labels seems messed up. I did not
> see this documented (my apologies if this is an oversight) and guess
> that it is unintended:

Yes, the current design does not anticipate the possibility of
duplicated row and column names. A fix may or may not be simple; I
will look into it.

-Deepayan


>
>
> library("lattice")
> m = matrix(runif(12L), ncol=3L)
> colnames(m) = c("A", "A", "B")
> rownames(m) = c("x", "y", "y", "z")
> print(levelplot(m))
>
>
>
> Best wishes
>  Wolfgang
>
> ------------------------------------------------------------------
> Wolfgang Huber  EBI/EMBL  Cambridge UK  http://www.ebi.ac.uk/huber
>
>
>
> > sessionInfo()
> R version 2.7.0 Under development (unstable) (2008-02-13 r44450)
> x86_64-unknown-linux-gnu
>
> locale:
> LC_CTYPE=it_IT.UTF-8;LC_NUMERIC=C;LC_TIME=it_IT.UTF-8;LC_COLLATE=it_IT.UTF-8;LC_MONETARY=it_IT.UTF-8;LC_MESSAGES=it_IT.UTF-8;LC_PAPER=it_IT.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=it_IT.UTF-8;LC_IDENTIFICATION=C
>
> attached base packages:
> [1] stats     graphics  grDevices utils     datasets  methods   base
>
> other attached packages:
> [1] lattice_0.17-4 fortunes_1.3-4
>
> loaded via a namespace (and not attached):
> [1] grid_2.7.0
> >
>
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>



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