Hi,


I'm using spdep to generate neighbors, than listw2lines to create a
SpatialLinesDataFrame.

Considering two neighbors N1 and N2, the line will be duplicated: one
N1->N2 and one N2->N1

Would you have any idea on how to select only one line from the two, for
example the first?
Actually, it would consist in removing duplicated lines with same geometry
but different directions.


Thanks in advance, any help would be greatly appreciated!

Mathieu

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