[R] image() with color key?
sdavis2 at mail.nih.gov
Fri Sep 3 22:36:35 CEST 2004
Have you looked at the code for the heatmap and heatmap.2 (gregmisc
package)? Also, it seems you might be able to do it with grid
graphics? Finally, I think there is a colorbar command in the marray
package available at http://www.bioconductor.org that generated color
bars for image plots. A combo of image and colorbar (?maColorBar) in
grid or something like that may work.
Perhaps the simplest solution would be to use heatmap or heatmap.2
directly with dendrogram='none'.
Hope this helps.
On Sep 3, 2004, at 4:20 PM, Berton Gunter wrote:
> In some applications, e.g., visualizing the values of the wells in a
> 96 well
> (8 x 12) assay plate, the matrix of results is truly discrete and you
> to visualize it that way. image() does this, but not filled.contour()
> If that's correct, the only way I know how to do it is to overlay two
> (par(new=FALSE)),one for the data and the other for the legend. This is
> certainly not trivial, but it's not impossibly hard, either.
> I hope I'm wrong on this, though, as I'd welcome an easier way, too.
> -- Bert Gunter
> Genentech Non-Clinical Statistics
> South San Francisco, CA
> "The business of the statistician is to catalyze the scientific
> process." - George E. P. Box
>> Does filled.contour() give you what you want?
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