Re: [R-sig-Geo] Convert SpatialPointsDataFrame to a SpatialGridDataFrame

2009-09-23 Thread Roger Bivand
On Wed, 23 Sep 2009, Brendan Malone wrote: Hi everyone, I would like to know a good way in which to convert a SpatialPointsDataFrame to a SpatialGridDataFrame. The reason that I ask is that when I change the CRS of a SpatialGridDataFrame, I inadvertently create a point data frame with the

Re: [R-sig-Geo] Convert SpatialPointsDataFrame to a SpatialGridDataFrame

2009-09-23 Thread Paul Hiemstra
Hi, I'm adding a section on changing coordinate systems for Spatial objects on the r tips wiki, including a section on reprojecting grids: http://wiki.r-project.org/rwiki/doku.php?id=tips:spatial-data:change_crs I'm still working on it right now, but everyone is welcome to add to it later