> I want to make a grid or raster from a land us / land cover shapefile, a > polygon with 9 categories. I want this to model a species distribution, > based on animal ocurrence.
You can also use menu Raster -> Rasterize, unfortunately you first need an empty raster to burn the polygons. It calls a GDAL utility program: http://www.gdal.org/gdal_rasterize.html From GDAL 1.8 it will create raster files from scratch.
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