Prog. for shade matrix from species-station table

[Klaus Schnack]

Hi,

to examine species distributions I'm looking for a program
to create a shade-matrix from a species-station table,
i.e. to replace each count in the table with a symbol whichs
size (or shade) is proportional to the value.

It's a common procedure to compare species distribution
between different sites, but until now I didn't find a
handy tool for this task.

Any suggestion where to find such a tool would be
appreciated very much.

Thanks

Klaaus

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Klaus Schnack                                      ks at sfb313.uni-kiel.de
Institut fuer Polaroekologie
Wischhofstr. 3, Geb. 12
24148 Kiel, Germany
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