Hi!
I'm trying:
> Br025SpPoints <- rasterToPoints(Br025,fun=function(x){x>0},asSpatialPoints=T)
Error in projection(x, asText = FALSE) : cannot use this x of class NULL
Calls: rasterToPoints ... SpatialPoints -> new -> initialize ->
initialize -> projection> projection(Br025) [1] "+proj=longlat +ellps=WGS84" > class(Br025) [1] "RasterLayer" attr(,"package") [1] "raster" > summary(Br025) Cells: 18000 NAs : 0 Min. 0.00 1st Qu. 0.00 Median 0.00 Mean 25.47 3rd Qu. 0.00 Max. 3638.00 The same works (albeit extremely slowly because of its size) for a projected raster: > summary(Br) Cells: 13967442 NAs : 0 Min. 0.00 1st Qu. 0.00 Median 0.00 Mean 48.82 3rd Qu. 0.00 Max. 4999.00 > class(Br) [1] "RasterLayer" attr(,"package") [1] "raster" > projection(Br) [1] "+proj=laea +lat_0=52 +lon_0=10 +x_0=4321000 +y_0=3210000 +ellps=GRS80 +units=m +no_defs" Maybe longlat is not contemplated by rasterToPoints() ? Thanks! Agus _______________________________________________ R-sig-Geo mailing list R-sig-Geo@stat.math.ethz.ch https://stat.ethz.ch/mailman/listinfo/r-sig-geo
