Hi, I want to write some R functions for calculating hydrological catchment characteristics from a DEM (topographic index, overland flow delay function etc.).
Looks like using a DEM with SpatialGridDataFrame class as an input is a good idea. Then what is the best way to extract the data matrix from this class to pass it on to a .C() function which does the actual calculations? cheers, wouter _______________________________________________ R-sig-Geo mailing list [email protected] https://stat.ethz.ch/mailman/listinfo/r-sig-geo
