## Not run: 
tahoe_highrez_training_polygons <- readOGR(
	dsn=system.file("external", package="gdalUtils"),layer="tahoe_highrez_training")
spplot(tahoe_highrez_training_polygons,zcol="Class")
tahoe_highrez_training_points <- readOGR(
	dsn=system.file("external", package="gdalUtils"),layer="tahoe_highrez_training_points")
spplot(tahoe_highrez_training_points,zcol="SPECIES")

## End(Not run)