Hi all, Could anybody tell me why this happens? When I generate a raster from a group of coordinates, it leaves some outside of it. changing the cell size of the raster and increasing the extent of the raster did not solve the problem.
There goes a reproducible example, Thanks in advance and see (some of) you soon. brownian=function(n=1000,fun=rnorm) { x<-cumsum(fun(n)) y<-cumsum(fun(n)) coor=data.frame(x,y,id) return(coor) } require(raster) require(sp) c=coords=brownian(50,fun=rnorm) coordinates(c)=c(1,2) r=raster(c) cellsiz=3 res(r) <- cellsiz extend(r, c(1,0)) p= rasterToPolygons(r) plot(p) points(coords,col="black") cellFromXY(r, coords) -- Agustín Camacho Guerrero. Doutor em Zoologia. Laboratório de Herpetologia, Departamento de Zoologia, Instituto de Biociências, USP. Rua do Matão, trav. 14, nº 321, Cidade Universitária, São Paulo - SP, CEP: 05508-090, Brasil. [[alternative HTML version deleted]]
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