reading an image and adding a legend

Simon Pickett <simon.pickett <at> bto.org> writes:

But my code returns an error

x<-read.pnm("C:/Documents and Settings/simonp/My Documents/Simon BTO/RELU/GIS

data/ten km areas in analysis.bmp")

Error in pm.readmagicnumber(con) : Not a PNM format file

Error message seems quite clear: bmp a non-supported format. Some year ago,
the wisdom was to convert your images using imagemagick

http://finzi.psych.upenn.edu/R/Rhelp02/archive/23131.html

But read.jpeg should work (another variant in rimage), if that's good enough
for your graphics

Dieter