I can't reproduce the problem with the meuse data either, so I've uploaded my
original data:
http://r-sig-geo.2731867.n2.nabble.com/file/n5655660/data_error.RData
data_error.RData
I get the problem when I do:
library(sp)
load("data_error.RData")
summary(data_pixels)
summary(as(data_pixels,'SpatialGridDataFrame'))
Here is the output from sessionInfo:
sessionInfo()
R version 2.10.1 (2009-12-14)
x86_64-apple-darwin9.8.0
locale:
[1] en_GB.UTF-8/en_GB.UTF-8/C/C/en_GB.UTF-8/en_GB.UTF-8
attached base packages:
[1] stats graphics grDevices utils datasets methods base
other attached packages:
[1] sp_0.9-65
loaded via a namespace (and not attached):
[1] grid_2.10.1 lattice_0.18-3