You could display the matrix as an image then add column names (rotated used
srt) if you really want them.
x <- cor(matrix(rnorm(600), 60, 100))
# set margins with extra space at top and xpd=TRUE to write outside plot
region
op<-par(mar=c(1,1,5,1), xpd=TRUE)
# display image without the 90 degree counter clockwise rotation
image(t(x[nrow(x):1,]), axes=FALSE)
## add 100 column names
y<-paste("column", 1:100)
text( seq(0,1,length=100) , 1.01, y, pos = 2, srt = 270, offset=0, cex=.7)
Chris Stubben
Lara Poplarski wrote:
>
> I have a large (1600*1600) matrix generated with symnum, that I am using
> to
> eyeball the structure of a dataset.
>
> I have abbreviated the column names with the abbr.colnames option. One way
> to get an even more compact view of the matrix would be to display the
> column names rotated by 90 degrees.
>
> Any pointers on how to do this would be most useful. Any other tips for
> displaying the matrix in compact form are of course also welcome.
>
>
>
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