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Update sparse_retain Documentation #15394

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Jun 28, 2019
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Update sparse_retain Documentation #15394

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c756a71
Update sparse_retain.cc
eric-haibin-lin Jun 27, 2019
1e3cee0
Update sparse_retain.cc
eric-haibin-lin Jun 27, 2019
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6 changes: 3 additions & 3 deletions src/operator/tensor/sparse_retain.cc
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Expand Up @@ -31,18 +31,18 @@ namespace op {
// accepts row-sparse format ndarrays. It will be registered
// under mxnet.ndarray.sparse with name retain.
NNVM_REGISTER_OP(_sparse_retain)
.describe(R"code(pick rows specified by user input index array from a row sparse matrix
.describe(R"code(Pick rows specified by user input index array from a row sparse matrix
and save them in the output sparse matrix.

Example::

data = [[1, 2], [3, 4], [5, 6]]
indices = [0, 1, 3]
shape = (4, 2)
rsp_in = row_sparse(data, indices)
rsp_in = row_sparse_array(data, indices)
to_retain = [0, 3]
rsp_out = retain(rsp_in, to_retain)
rsp_out.values = [[1, 2], [5, 6]]
rsp_out.data = [[1, 2], [5, 6]]
rsp_out.indices = [0, 3]

The storage type of ``retain`` output depends on storage types of inputs
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