[R] Pixmap problem

[Benjamin Lloyd-Hughes]

Hi,

I'm having trouble writing .pnm images which I think is due to a problem
with my colour space.  The pixmap object seems to be looking for 72 of 8
colours (one per cell?) which doesn't seem healthy...

> library(pixmap)
> x <- pixmapIndexed(rep(1:8, 9), nrow=6, col=rainbow(8))
> x
Pixmap image
  Type          : pixmapIndexed 
  Size          : 6x12 
  Resolution    : 1x1 
  Bounding box  : 0 0 12 6 
  Nr. of colors : 72 of 8 

> write.pnm(x, file="D:/Temp/output.pnm")
Error in options(x) : evaluation nested too deeply: infinite recursion /
options(expression=)?
>

Grey ones work but with a warning...

> x <- pixmapGrey(rep(1:8, 9), nrow=6)
> x
Pixmap image
  Type          : pixmapGrey 
  Size          : 6x12 
  Resolution    : 1x1 
  Bounding box  : 0 0 12 6 

> write.pnm(x, file="D:/Temp/output.pnm")
Warning message: 
connection is already open 
>

Any ideas? 

Cheers, Ben
[R 1.9.1 and Pixmap 0.4-1 under windows]