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9cfa5ce3
编写于
1月 02, 2018
作者:
Y
Yang yaming
提交者:
GitHub
1月 02, 2018
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Merge pull request #7128 from pkuyym/fix-7024
Add doc for lod_rank_table.
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899a79cc
0d4fdce0
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with
44 addition
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3 deletion
+44
-3
python/paddle/v2/fluid/layers/control_flow.py
python/paddle/v2/fluid/layers/control_flow.py
+44
-3
未找到文件。
python/paddle/v2/fluid/layers/control_flow.py
浏览文件 @
9cfa5ce3
...
@@ -397,9 +397,50 @@ class While(object):
...
@@ -397,9 +397,50 @@ class While(object):
def
lod_rank_table
(
x
,
level
=
0
):
def
lod_rank_table
(
x
,
level
=
0
):
"""
"""LoD Rank Table Operator. Given an input variable **x** and a level number
This function creates an operator for creating a LOD_RANK_TABLE
of LoD, this layer creates a LodRankTable object. A LoDRankTable object
using the input x.
contains a list of bi-element tuples. Each tuple consists of an index and
a length, both of which are int type. Reffering to specified level of LoD,
the index is the sequence index number and the length representes the
sequence length. Please note that the list is ranked in descending order by
the length. The following is an example:
.. code-block:: text
x is a LoDTensor:
x.lod = [[0, 2, 3],
[0, 5, 6, 7]]
x.data = [a, b, c, d, e, f, g]
1. set level to 0:
Create lod rank table:
lod_rank_table_obj = lod_rank_table(x, level=0)
Get:
lod_rank_table_obj.items() = [(0, 2), (1, 1)]
2. set level to 1:
Create lod rank table:
lod_rank_table_obj = lod_rank_table(x, level=1)
Get:
lod_rank_table_obj.items() = [(0, 5), (1, 1), (2, 1)]
Args:
x (Variable): Input variable, a LoDTensor based which to create the lod
rank table.
level (int): Specify the LoD level, on which to create the lod rank
table.
Returns:
Variable: The created LoDRankTable object.
Examples:
.. code-block:: python
x = fluid.layers.data(name='x', shape=[10],
dtype='float32', lod_level=1)
out = layers.lod_rank_table(x=x, level=0)
"""
"""
helper
=
LayerHelper
(
"lod_rank_table"
,
**
locals
())
helper
=
LayerHelper
(
"lod_rank_table"
,
**
locals
())
table
=
helper
.
create_variable
(
table
=
helper
.
create_variable
(
...
...
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