Dear list,

I tried to save my data into IDRISI format but end up with this error
message:
Error in if (is.null(projs) | is.na(projs) | nchar(projs) < 3) { :
  argument is of length zero

library(raster)
library(rgdal)
r <- raster(nrow=10, ncol=10)
s <- stack( sapply(1:2, function(i) setValues(r, rnorm(ncell(r), i, 3) )) )
s[1:6] <- NA
single <- s$layer.1
writeRaster(single, filename="idri.rst", format="IDRISI", overwrite=TRUE)

sessionInfo()
R version 3.0.1 (2013-05-16)
Platform: x86_64-w64-mingw32/x64 (64-bit)

other attached packages:
[1] raster_2.1-66 rgdal_0.8-11  sp_1.0-14

Can somebody help?

Cheers
Eddie

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