cat and size

Xin Zhuang zhuang at
Mon Jun 7 17:32:28 EDT 1993

What's the appropriate way to get a category
and its corresponding size of area from
a raster layer?

I know will create a list. However,
I want to use the category name (it's a number
in my case) and the size to do a compuation.
It seems to me I have to program a function.

I appreciate any hint.

--Xin Zhuang
zhuang at

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