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bundles / scipy latest / scipy / sparse / csgraph / _tools / csgraph_from_masked

cython_function_or_method

scipy.sparse.csgraph._tools:csgraph_from_masked

Signature

def   csgraph_from_masked ( graph )

Summary

Construct a CSR-format graph from a masked array.

Extended Summary

Parameters

graph : MaskedArray

Input graph. Shape should be (n_nodes, n_nodes).

Returns

csgraph : csr_array

Compressed sparse representation of graph,

Examples

import numpy as np
from scipy.sparse.csgraph import csgraph_from_masked
✓
graph_masked = np.ma.masked_array(data =[
[0, 1, 2, 0],
[0, 0, 0, 1],
[0, 0, 0, 3],
[0, 0, 0, 0]
],
mask=[[ True, False, False,  True],
      [ True,  True,  True, False],
      [ True,  True,  True, False],
      [ True,  True,  True,  True]],
fill_value = 0)
✓
csgraph_from_masked(graph_masked)
✗

Aliases

  • scipy.sparse.csgraph.csgraph_from_masked