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体验新版 GitCode,发现更多精彩内容 >>
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537cee99
编写于
8月 26, 2021
作者:
G
Guoxia Wang
提交者:
GitHub
8月 26, 2021
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差异文件
add paddle.sum example and doc (#35051)
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a1aae040
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+13
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python/paddle/tensor/math.py
python/paddle/tensor/math.py
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python/paddle/tensor/math.py
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537cee99
...
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@@ -656,7 +656,7 @@ def sum(x, axis=None, dtype=None, keepdim=False, name=None):
Computes the sum of tensor elements over the given dimension.
Args:
x (Tensor): An N-D Tensor, the data type is float32, float64, int32 or int64.
x (Tensor): An N-D Tensor, the data type is
bool, float16,
float32, float64, int32 or int64.
axis (int|list|tuple, optional): The dimensions along which the sum is performed. If
:attr:`None`, sum all elements of :attr:`x` and return a
Tensor with a single element, otherwise must be in the
...
...
@@ -673,11 +673,10 @@ def sum(x, axis=None, dtype=None, keepdim=False, name=None):
Returns:
Tensor: Results of summation operation on the specified axis of input Tensor `x`,
it's data type is the same as `x`.
if `x.dtype='bool'`, `x.dtype='int32'`, it's data type is `'int64'`,
otherwise it's data type is the same as `x`.
Raises:
ValueError: If the data type of `x` is float64, :attr:`dtype` can not be float32 or int32.
ValueError: If the data type of `x` is int64, :attr:`dtype` can not be int32.
TypeError: The type of :attr:`axis` must be int, list or tuple.
Examples:
...
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@@ -704,6 +703,16 @@ def sum(x, axis=None, dtype=None, keepdim=False, name=None):
[[5, 6], [7, 8]]])
out5 = paddle.sum(y, axis=[1, 2]) # [10, 26]
out6 = paddle.sum(y, axis=[0, 1]) # [16, 20]
# x is a Tensor with following elements:
# [[True, True, True, True]
# [False, False, False, False]]
# Each example is followed by the corresponding output tensor.
x = paddle.to_tensor([[True, True, True, True],
[False, False, False, False]])
out7 = paddle.sum(x) # [4]
out8 = paddle.sum(x, axis=0) # [1, 1, 1, 1]
out9 = paddle.sum(x, axis=1) # [4, 0]
"""
if
axis
is
not
None
and
not
isinstance
(
axis
,
(
list
,
tuple
)):
axis
=
[
axis
]
...
...
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