[GRASS-user] combining and evaluating vector dbf values

[maning sambale]

Hi,

Any help in doing the following:

I have a combined vector in grass using v.overlay

I now have a dbf table with the following
a_value = integer
a_value2 = integer
b_value = string

Now I want to combine the categories in another column (c_value) like :

evaluate b_value, a_value, a_value2
then assign c_value from a lookup table

the lookup table is a set of integer values based on the various
combinations of b_value, a_value, a_value2

Any ideas doing this in GRASS or oodbase?

cheers,
maning


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