Hi
it is difficult to reproduce on spearfish, because there are no data
like this
I vextorised watershed file and at the end of some watershed I have
sutructure like on picture below (rather tipical for watershed):
|
|
+ |
__________|_
|_|_
|_|_
|_|_
|_|
Addationaly every square on right-down "stream" has his own centeroid
but with the same cateogry like main centeroid
I import these data to R with readVECT6 and I have more object than
shoud be, because every square became a separtate vector with his own
attributes (some of atrributes are multipied).
In grass I can treat such group as one object by its category number but
in R? How to force R to treat these group of polygons as one obiect
Jarek
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