On 15/11/07 08:27, Dr. Manuel Seeger wrote:
Hello list,

I have a polygon map with a huge table, in which some columns give the information about a classification of the single polygons (these are represnted by single categories). I would like to calculate e.g. the sum of areas belonging to each class. How can I do this I tried a way by extracting the class needed indiviadually, generating a new tabel and so on, but it seems to be quite complicated. Is there a more simple way to get the results?

v.to.db with option=area ?

Moritz

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