Hi, str() on raster objects fails for certain dimensions. For example:
> str(as.raster(0, nrow=1, ncol=100)) 'raster' chr [1, 1:100] "#000000" "#000000" "#000000" "#000000" ... > str(as.raster(0, nrow=1, ncol=101)) Error in `[.raster`(object, seq_len(max.len)) : subscript out of bounds This seems to do with how str() and "[.raster"() is coded; when subsetting as a vector, which str() relies on, "[.raster"() still returns a matrix-like object, e.g. > img <- as.raster(1:25, max=25, nrow=5, ncol=5); > img[1:2] [,1] [,2] [,3] [,4] [,5] [1,] "#0A0A0A" "#3D3D3D" "#707070" "#A3A3A3" "#D6D6D6" [2,] "#141414" "#474747" "#7A7A7A" "#ADADAD" "#E0E0E0" compare with: > as.matrix(img)[1:2] [1] "#0A0A0A" "#3D3D3D" The easy but incomplete fix is to do: str.raster <- function(object, ...) { str(as.matrix(object), ...); } Other suggestions? > sessionInfo() R version 2.13.0 Under development (unstable) (2011-01-27 r54129) Platform: x86_64-pc-mingw32/x64 (64-bit) locale: [1] LC_COLLATE=English_United States.1252 [2] LC_CTYPE=English_United States.1252 [3] LC_MONETARY=English_United States.1252 [4] LC_NUMERIC=C [5] LC_TIME=English_United States.1252 attached base packages: [1] stats graphics grDevices utils datasets methods base loaded via a namespace (and not attached): /Henrik ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel