- cKDTree.sparse_distance_matrix(self, other, max_distance, p=2.0)¶
Compute a sparse distance matrix
Computes a distance matrix between two KDTrees, leaving as zero any distance greater than max_distance.
other : cKDTree
max_distance : positive float
p : float, 1<=p<=infinity
Which Minkowski p-norm to use.
result : dok_matrix
Sparse matrix representing the results in “dictionary of keys” format. FIXME: Internally, built as a COO matrix, it would be more efficient to return this COO matrix.