Dear all,
I have a list of pixel images that I would like to export to in a raster
format, i.e. GRID, tif, etc, to be able to visualize them in ArcGIS/QGIS
but I am not sure how to convert them to SpatialGridDataFrame to be able to
export them as tif using writeGGAL. For example:

#########
data(lansing)
rrisklan <- relrisk(lansing))
#####################

The last yield a list of pixel images (rrisklan) with spatially varying
risk for each specie, how could I convert them to a appropriate format to
be able to export them as TIF.

Thanks,
Jose Funes
JHU

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