[R] rotate column names in large matrix
stubben at lanl.gov
Tue Nov 16 18:59:02 CET 2010
Just increase the margins on the left side and add the rownames
x <- cor(matrix(rnorm(600), 60, 100))
text(-0.01, seq(0,1,length=nrow(x) ), rownames(x), pos = 2, offset = 0,
cex = .7)
Another option is to search the R graphics manual at
http://rgm2.lab.nig.ac.jp/RGM2/images.php and maybe you'll find a function
in all those packages that plots what you need. Try searching for "symnum"
or "image key" or "matrix plot" (in quotes). For "matrix plot", there's a
function in the plotrix package that will add a key or even show values in
color2D.matplot(x, show.legend=TRUE, red=1, blue=0)
Lara Poplarski wrote:
> Chris, could you please suggest how to modify what you sent to also show
> same labels as (horizontal) row names? I have not yet mastered the details
> of R graphics...
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