libpysal.weights.
vecW
(origin_x, origin_y, dest_x, dest_y, threshold, p=2, alpha=-1.0, binary=True, ids=None, build_sp=False, **kwargs)[source]¶Distance-based spatial weight for vectors that is computed using a 4-dimensional distance between the origin x,y-coordinates and the destination x,y-coordinates
Parameters: |
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Examples
>>> import libpysal
>>> x1 = [5,6,3]
>>> y1 = [1,8,5]
>>> x2 = [2,4,9]
>>> y2 = [3,6,1]
>>> W1 = libpysal.weights.vecW(x1, y1, x2, y2, threshold=999)
>>> list(W1.neighbors[0])
[1, 2]
>>> W2 = libpysal.weights.vecW(x1, y2, x1, y2, threshold=8.5)
>>> list(W2.neighbors[0])
[1, 2]