"Mike Saunders" <mike_saunders at umenfa.maine.edu> 08/23/05 06:52AM
This is a strange request, but I want to build a scatterplot using
different image files (jpegs, gif, etc.) as the plot symbols.
I have thought about setting this up using a very large layout
matrix, but I thought someone might have a better
approach. Furthermore, is there any way to have R paste an image
file into a specific coordinate within a scatterplot?
Here is an example using cnvrt.coords from the TeachingDemos package
and the jpeg plotting functions from the rimage
package:
library(TeachingDemos)
library(rimage)
data(logo)
x <- runif(10,3,6)
y <- runif(10,100,200)
plot(x,y, type='n')
cp <- par(no.readonly=TRUE)
tmp <- cnvrt.coords(x,y)
for (i in 1:10){
par(plt=c(tmp$dev$x[i] + c(-0.03,0.03), tmp$dev$y[i] +
c(-0.03,0.03)),
new=TRUE)
plot(logo)
}
par(cp)
hope this helps,
Greg Snow, Ph.D.
Statistical Data Center, LDS Hospital
Intermountain Health Care
greg.snow at ihc.com
(801) 408-8111