DOC: sparse.csgraph simple examples.

[peterSweter]

I have created simple examples for the following sparse.csgraph functions:

sparse.csgraph (18)
connected_components
shortest_path
floyd_warshall
dijkstra
bellman_ford
johnson
breadth_first_order
depth_first_order
reverse_cuthill_mckee
maximum_bipartite_matching
structural_rank
construct_dist_matrix
reconstruct_path
csgraph_masked_from_dense
csgraph_from_dense
csgraph_from_masked
csgraph_to_dense
csgraph_to_masked

[peterSweter]

I don't understand why Travis CI is failing. The log says:

Failed example:
    csgraph_masked_from_dense(graph)
Expected:
    masked_array(data =
     [[-- 1 2 --]
     [-- -- -- 1]
     [-- -- -- 3]
     [-- -- -- --]],
                 mask =
     [[ True False False  True]
     [ True  True  True False]
     [ True  True  True False]
     [ True  True  True  True]],
           fill_value = 0)
Got:
    masked_array(
      data=[[--, 1, 2, --],
            [--, --, --, 1],
            [--, --, --, 3],
            [--, --, --, --]],
      mask=[[ True, False, False,  True],
            [ True,  True,  True, False],
            [ True,  True,  True, False],
            [ True,  True,  True,  True]],
      fill_value=0)

When I run the test locally I have masked_array printed without commas separating elements in the array. In Numpy masked_array examples, masked_array is printed without commas: https://docs.scipy.org/doc/numpy/reference/maskedarray.generic.html

[rgommers]

That will depend on the numpy version you use I think. The documentation checker on TravisCI uses the latest version, so 1.14.4. In numpy 1.13.x-1.14.x there was quite a mess with array formatting changes.

Just changing it in your example to the "Expected" format above should be fine.

[rgommers]

Thanks @peterSweter, these examples look good!

[pv]

Depends on numpy version, the tests use latest (1.14.4). pe 8. kesäkuuta 2018 klo 13.05 Piotr Uchwat <notifications@github.com> kirjoitti:

…

I don't understand why Travis CI is failing. The log says: Failed example: csgraph_masked_from_dense(graph) Expected: masked_array(data = [[-- 1 2 --] [-- -- -- 1] [-- -- -- 3] [-- -- -- --]], mask = [[ True False False True] [ True True True False] [ True True True False] [ True True True True]], fill_value = 0) Got: masked_array( data=[[--, 1, 2, --], [--, --, --, 1], [--, --, --, 3], [--, --, --, --]], mask=[[ True, False, False, True], [ True, True, True, False], [ True, True, True, False], [ True, True, True, True]], fill_value=0) When I run the test locally I have masked_array printed without commas separating elements in the array. In Numpy masked_array examples, masked_array is printed without commas: https://docs.scipy.org/doc/numpy/reference/maskedarray.generic.html — You are receiving this because you are subscribed to this thread. Reply to this email directly, view it on GitHub <#8910 (comment)>, or mute the thread <https://github.com/notifications/unsubscribe-auth/AACI5qLLt3w4ipORPYHkb2dLLAQxxjTFks5t6kxFgaJpZM4UeLx3> .

[rgommers]

LGTM now, merging. Thanks @peterSweter