scipy.sparse.csgraph.
csgraph_from_masked#
- scipy.sparse.csgraph.csgraph_from_masked(graph)#
- Construct a CSR-format graph from a masked array. - Added in version 0.11.0. - Parameters:
- graphMaskedArray
- Input graph. Shape should be (n_nodes, n_nodes). 
 
- Returns:
- csgraphcsr_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) <Compressed Sparse Row sparse array of dtype 'float64' with 4 stored elements and shape (4, 4)>