Hi, In ?kernelUD, the "grid" argument is described as:
---<--------------------cut here---------------start------------------->--- grid: a number giving the size of the grid on which the UD should be estimated. Alternatively, this parameter may be an object inheriting the class ‘SpatialPixels’. For the function ‘kernelUD’, it may in addition be a list of objects of class ‘SpatialPixels’, with named elements corresponding to each level of the factor id. ---<--------------------cut here---------------end--------------------->--- I'm not sure what is meant by the "size of the grid". Is this the number of cells in the output grid, and then cell dimensions are calculated accordingly? I tried to get more control over this by passing a SpatialPixels object, but kernelUD seems to expect square cells. Thanks, -- Seb _______________________________________________ R-sig-ecology mailing list R-sig-ecology@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology