[R] tableGrob and properties of a cell

baptiste auguie baptiste.auguie at googlemail.com
Tue Dec 7 19:28:38 CET 2010


Embarrassingly enough, it was quite straight-forward in the first
versions of grid.table(). You might want to try with version r11 for


 tc  = textConnection("
      carat   VeryLongWordIndeed color clarity depth
 14513  1.35 Ideal     J     VS2  61.4
 28685  0.30  Good     G    VVS1  64.0
 50368  0.75 Ideal     F     SI2  59.2")
 d = read.table(tc,head=T)
 g = grid.table(d)
 grid.edit("top-head-fill-5", gp=gpar(fill="red"))
 grid.edit("cells-label-33", label=expression(alpha),gp=gpar(col="orange"))

As I recall, the reason why this is more difficult now (if at all
possible, I have no idea), is that I placed the actual drawing code in
a drawDetails method, so that it gets updated on-the-fly, etc.

I hope this simpler version will suit you, I might re-include it in
the package as an alternative.



On 7 December 2010 16:53, Alex Bird <sunduck at gmail.com> wrote:
> Hello there,
>  could you please help to modify gpar() properties of a cell inside
> tableGrob() output.
>  In the following example I want to have different color for one out of 4 cells
> require(gridExtra)
> z<-matrix(1:4,2,2)
> grid.draw(tableGrob(z))
>  The only way I found for now how to do it is to do something like this
> downViewport(current.vpTree()$children[[1]]$children[[6]]$name)
> grid.text('2',gp=gpar(col='red',fontface='bold'))
> But for some reasons when I try to print the table into jpeg the last
> grid.text() prints desired label text somewhere but not in the place I
> want it to be.
> Is there another more "smart" way to do it?
> Thanks in advance!
> Kind regards,
> Alex
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Dr. Baptiste Auguié

Departamento de Química Física,
Universidade de Vigo,
Campus Universitario, 36310, Vigo, Spain

tel: +34 9868 18617

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