Dear colleges, I need to create a object wit the coordinates of a grid and the values in the point sampled, using the meuse.grid example:
## regular sampling over a grid library(sp) data(meuse.grid) gridded(meuse.grid) = ~x+y image(meuse.grid["dist"]) points(spsample(meuse.grid,n=1000,type="regular"), pch=3, cex=.4) but here I don't how I can find the value in the image associated with the grid, there are any suggestion? Thanks, -- Alexandre DOS SANTOS Engenheiro Florestal, Msc. Laboratório de Entomologia Florestal Departamento de Entomologia Universidade Federal de Lavras Caixa Postal 3037 37200-000 - Lavras - Minas Gerais - Brasil Tel: +55 35 92230304 _______________________________________________ R-sig-Geo mailing list R-sig-Geo@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-geo