I think I understand it now.
Can I specify all area files in one CMD file with just 1 output file
('set output=file')? So that I would obtain all results in one output
file?
Ulrich
On Thu, 21 Aug 2003, Edzer J. Pebesma wrote:
>
>
> uleopold wrote:
>
> >On Thu, 21 Aug 2003, Edzer J. Pebesma wrote:
> >
> >I tried to use the area option mentioned in appendix A.3. But it turned
> >out to be extremely slow. Probably I made a mistake.
> >
> >Below is my cmd file. It took gstat 2 hours to initialise the maps whereas
> >it does take usually a few seconds. 'mask' and 'area map' are both raster
> >maps on the same grid cell support. For the area map I chose integers
> >classifying each polygon. Each polygon (area) has a different size. There
> >are 31 in total.
> >
> >
> I (think I) see what you would like. 'area' is a map that discretizes
> the different
> areas. However, the command is 'area:...', not 'areas: ...'. Also you do
> specify
> a mask map, so anything in the area map should be relative to (0,0), i.e. no
> geographic coordinates, but coordinates relative to the cell centres in the
> mask cells.
>
> What I would do is this: do for every unit in 'LEI':
>
> - create an area map with only that unit non-missing valued
> - omit the 'mask' command, so the units' coordinates are absolute, not
> relative.
>
> I agree that doing this without the do-loop would be nice :-)
> --
> Edzer
>
>
--
__________________________________________________
Ulrich Leopold MSc.
Department of Physical Geography
Institute for Biodiversity and Ecosystem Dynamics
Faculty of Science
University of Amsterdam
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