Dear list members,

How I make a raster file from a shapefile?

I tried this, but I don't think is right.  Also, I lost the projection in
the raster "cob", why?

> cob = raster(cobertura) # cobertura is a shapefile
> plot(cob)
Error en .plotraster(x, col = col, maxpixels = maxpixels, ...) :
  no values associated with this RasterLayer

Best,

Manuel

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