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未验证 提交 fc6fed32 编写于 作者: W wangchaochaohu 提交者： GitHub
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(Variable --->Tensor) refine the OP doc for API2.0 (#25737)

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python/paddle/fluid/layers/tensor.py
浏览文件 @ fc6fed32
...@@ -263,28 +263,25 @@ def cast(x, dtype): ...@@ -263,28 +263,25 @@ def cast(x, dtype):
def concat(input, axis=0, name=None): def concat(input, axis=0, name=None):
""" """
:alias_main: paddle.concat
:alias: paddle.concat,paddle.tensor.concat,paddle.tensor.manipulation.concat
This OP concatenates the input along the axis. This OP concatenates the input along the axis.
Args: Args:
input(list): List of input Tensors with data type float16, float32, float64, int32, input(list): List of input Tensors with data type float16, float32, float64, int32,
int64. All the Tensors in ``input`` must have the same data type. int64. All the Tensors in ``input`` must have the same data type.
axis(int|Variable, optional): Specify the axis to operate on the input Tensors. axis(int|Tensor, optional): Specify the axis to operate on the input Tensors.
It's a scalar with type ``int`` or a ``Tensor`` with shape [1] and data type ``int32`` or ``int64``. It's a scalar with data type int or a Tensor with shape [1] and data type int32 or int64.
The effective range is [-R, R), where R is Rank(x). When ``axis < 0``, it works the same way The effective range is [-R, R), where R is Rank(x). When ``axis < 0``, it works the same way
as axis+R. Default is 0. as ``axis+R``. Default is 0.
name (str, optional): The default value is None. Normally there is no name (str, optional): The default value is None. Normally there is no
need for user to set this property. For more information, please need for user to set this property. For more information, please
refer to :ref:`api_guide_Name`. refer to :ref:`api_guide_Name`.
Raises: Raises:
TypeError: The dtype of input must be one of float16, float32, float64, int32 and int64. TypeError: The dtype of ``input`` must be one of float16, float32, float64, int32 and int64.
TypeError: The ``axis`` must be int or Variable. The dtype of ``axis`` must be int32 or int64 when it's a Tensor. TypeError: The ``axis`` must be int or Tensor. The dtype of ``axis`` must be int32 or int64 when it's a Tensor.
TypeError: All the Tensors in ``input`` must have the same data type. TypeError: All the Tensors in ``input`` must have the same data type.
Returns: Returns:
Variable: A Tensor with the same data type as ``input``. Tensor: A Tensor with the same data type as ``input``.
Examples: Examples:
.. code-block:: python .. code-block:: python
...@@ -633,8 +630,7 @@ def assign(input, output=None): ...@@ -633,8 +630,7 @@ def assign(input, output=None):
def fill_constant(shape, dtype, value, force_cpu=False, out=None, name=None): def fill_constant(shape, dtype, value, force_cpu=False, out=None, name=None):
""" """
:alias_main: paddle.fill_constant :alias_main: paddle.fill_constant
:alias: paddle.fill_constant,paddle.tensor.fill_constant,paddle.tensor.creation.fill_constant :alias: paddle.tensor.fill_constant, paddle.tensor.creation.fill_constant
:old_api: paddle.fluid.layers.fill_constant
This OP creates a Tensor with specified `shape` and `dtype`, and This OP creates a Tensor with specified `shape` and `dtype`, and
initializes it with a constant specified by `value`. initializes it with a constant specified by `value`.
...@@ -642,47 +638,47 @@ def fill_constant(shape, dtype, value, force_cpu=False, out=None, name=None): ...@@ -642,47 +638,47 @@ def fill_constant(shape, dtype, value, force_cpu=False, out=None, name=None):
The attribute `stop_gradient` of the created Tensor is set to True. The attribute `stop_gradient` of the created Tensor is set to True.
Args: Args:
shape(list|tuple|Variable): Shape of the Tensor to be created. shape(list|tuple|Tensor): Shape of the output Tensor, the data type of ``shape`` is int32 or int64.
The data type is ``int32`` or ``int64`` . If ``shape`` is a list or tuple, If ``shape`` is a list or tuple, the elements of it should be integers or Tensors with shape [1].
the elements of it should be integers or Tensors with shape [1]. If ``shape`` is an Tensor, it should be an 1-D Tensor with date type int32 or int64.
If ``shape`` is an Variable, it should be an 1-D Tensor . dtype(np.dtype|core.VarDesc.VarType|str): Data type of the output Tensor which can
dtype(np.dtype|core.VarDesc.VarType|str): Data type of the output tensor which can
be float16, float32, float64, int32, int64. be float16, float32, float64, int32, int64.
value(bool|float|int|Variable): The constant value used to initialize value(bool|float|int|Tensor): The constant value used to initialize
the Tensor to be created. If value is an Variable, it should be an 1-D Tensor. the Tensor to be created. If ``value`` is an Tensor, it should be an 1-D Tensor.
force_cpu(bool): data should be on CPU if it's true, default value is False. force_cpu(bool, optional): data should be on CPU if it's true, default value is False.
out(Variable, optional): Optional output which can be any created out(Tensor, optional): Optional output which can be any created
Variable that meets the requirements to store the result of operation. Tensor that meets the requirements to store the result of operation.
if out is None, a new Varibale will be create to store the result. if ``out`` is None, a new Tensor will be create to store the result.
name(str, optional): The default value is None. Normally there is no need for user to set this name(str, optional): The default value is None. Normally there is no need for user to set this
property. For more information, please refer to :ref:`api_guide_Name`. property. For more information, please refer to :ref:`api_guide_Name`.
Returns: Returns:
Variable: Tensor which is created according to shape and dtype. Tensor: Tensor which is created according to shape and dtype.
Raises: Raises:
TypeError: The dtype must be one of bool, float16, float32, float64, int32 and int64 TypeError: The dtype must be one of bool, float16, float32, float64, int32 and int64
and the data type of out Tensor must be the same as the dtype. and the data type of ``out`` must be the same as the ``dtype``.
TypeError: The shape must be one of list, tuple and Variable. TypeError: The shape must be one of list, tuple and Tensor, the data type of ``shape``
must be int32 or int64 when ``shape`` is a Tensor
Examples: Examples:
.. code-block:: python .. code-block:: python
import paddle.fluid as fluid import paddle.fluid as fluid
# attr shape is a list which doesn't contain Variable Tensor. # attr shape is a list which doesn't contain Tensor.
data1 = fluid.layers.fill_constant(shape=[2,1], value=0, dtype='int64') # data1=[[0],[0]] data1 = fluid.layers.fill_constant(shape=[2,1], value=0, dtype='int64') # data1=[[0],[0]]
data2 = fluid.layers.fill_constant(shape=[2,1], value=5, dtype='int64', out=data1) data2 = fluid.layers.fill_constant(shape=[2,1], value=5, dtype='int64', out=data1)
# data1=[[5], [5]] data2=[[5], [5]] # data1=[[5], [5]] data2=[[5], [5]]
# attr shape is a list which contains Variable Tensor. # attr shape is a list which contains Tensor.
positive_2 = fluid.layers.fill_constant([1], "int32", 2) positive_2 = fluid.layers.fill_constant([1], "int32", 2)
data3 = fluid.layers.fill_constant(shape=[1, positive_2], dtype='float32', value=1.5) # data3=[[1.5, 1.5]] data3 = fluid.layers.fill_constant(shape=[1, positive_2], dtype='float32', value=1.5) # data3=[[1.5, 1.5]]
# attr shape is an Variable Tensor. # attr shape is a Tensor.
shape = fluid.layers.fill_constant([2], "int32", 2) # shape=[2,2] shape = fluid.layers.fill_constant([2], "int32", 2) # shape=[2,2]
data4 = fluid.layers.fill_constant(shape=shape, dtype='bool', value=True) # data4=[[True,True],[True,True]] data4 = fluid.layers.fill_constant(shape=shape, dtype='bool', value=True) # data4=[[True,True],[True,True]]
# attr value is an Variable Tensor. # attr value is a Tensor.
val = fluid.layers.fill_constant([1], "float32", 2.0) # val=[2.0] val = fluid.layers.fill_constant([1], "float32", 2.0) # val=[2.0]
data5 = fluid.layers.fill_constant(shape=[2,1], value=val, dtype='float32') #data5=[[2.0],[2.0]] data5 = fluid.layers.fill_constant(shape=[2,1], value=val, dtype='float32') #data5=[[2.0],[2.0]]
""" """
...@@ -1039,28 +1035,31 @@ def ones(shape, dtype, force_cpu=False): ...@@ -1039,28 +1035,31 @@ def ones(shape, dtype, force_cpu=False):
Its :attr:`stop_gradient` will be set to True to stop gradient computation. Its :attr:`stop_gradient` will be set to True to stop gradient computation.
Parameters: Parameters:
shape (tuple|list): Shape of output tensor. shape(tuple|list|Tensor): Shape of output Tensor, the data type of shape is int32 or int64.
dtype (np.dtype|core.VarDesc.VarType|str): Data type of output tensor, it supports dtype (np.dtype|core.VarDesc.VarType|str): Data type of output Tensor, it supports
bool, float16, float32, float64, int32 and int64. bool, float16, float32, float64, int32 and int64.
force_cpu (bool, optional): Whether force to store the output tensor in CPU memory. force_cpu (bool, optional): Whether force to store the output Tensor in CPU memory.
If :attr:`force_cpu` is False, the output tensor will be stored in running device memory. If :attr:`force_cpu` is False, the output Tensor will be stored in running device memory.
Default: False. Default: False.
Returns: Returns:
Variable: A tensor of data type :attr:`dtype` with shape :attr:`shape` and all elements set to 1. Tensor: A tensor of data type :attr:`dtype` with shape :attr:`shape` and all elements set to 1.
Raises:
TypeError: The ``dtype`` must be one of bool, float16, float32, float64, int32, int64 and None
and the data type of out Tensor must be the same as the dtype.
TypeError: The ``shape`` must be one of list, tuple and Tensor. The data type of ``shape`` must
be int32 or int64 when it's a Tensor.
Examples: Examples:
.. code-block:: python .. code-block:: python
import paddle.fluid as fluid import paddle.fluid as fluid
data = fluid.layers.ones(shape=[2, 4], dtype='float32') # [[1., 1., 1., 1.], [1., 1., 1., 1.]] data0 = fluid.layers.ones(shape=[2, 4], dtype='float32') # [[1., 1., 1., 1.], [1., 1., 1., 1.]]
# shape is a Tensor
shape = fluid.layers.fill_constant(shape=[2], dtype='int32', value=2)
data1 = fluid.layers.ones(shape=shape, dtype='int32') #[[1, 1], [1, 1]]
""" """
check_type(shape, 'shape', (list, tuple), 'ones')
check_dtype(dtype, 'create data type',
['bool', 'float16', 'float32', 'float64', 'int32', 'int64'],
'ones')
assert reduce(lambda x, y: x * y,
shape) > 0, "The shape is invalid: %s." % (str(shape))
return fill_constant(value=1.0, **locals()) return fill_constant(value=1.0, **locals())
...@@ -1070,23 +1069,32 @@ def zeros(shape, dtype, force_cpu=False, name=None): ...@@ -1070,23 +1069,32 @@ def zeros(shape, dtype, force_cpu=False, name=None):
Its :attr:`stop_gradient` will be set to True to stop gradient computation. Its :attr:`stop_gradient` will be set to True to stop gradient computation.
Parameters: Parameters:
shape (tuple|list): Shape of output tensor. shape(tuple|list|Tensor): Shape of output Tensor, the data type of ``shape`` is int32 or int64.
dtype (np.dtype|core.VarDesc.VarType|str): Data type of output tensor, it supports dtype (np.dtype|core.VarDesc.VarType|str): Data type of output Tensor, it supports
bool, float16, float32, float64, int32 and int64. bool, float16, float32, float64, int32 and int64.
force_cpu (bool, optional): Whether force to store the output tensor in CPU memory. force_cpu (bool, optional): Whether force to store the output Tensor in CPU memory.
If :attr:`force_cpu` is False, the output tensor will be stored in running device memory. If :attr:`force_cpu` is False, the output Tensor will be stored in running device memory.
Default: False. Default: False.
name(str, optional): The default value is None. Normally there is no need for user to set this name(str, optional): The default value is None. Normally there is no need for user to set this
property. For more information, please refer to :ref:`api_guide_Name`. property. For more information, please refer to :ref:`api_guide_Name`.
Returns: Returns:
Variable: A tensor of data type :attr:`dtype` with shape :attr:`shape` and all elements set to 0. Tensor: A tensor of data type :attr:`dtype` with shape :attr:`shape` and all elements set to 0.
Raises:
TypeError: The ``dtype`` must be one of bool, float16, float32, float64, int32, int64 and None
and the data type of out Tensor must be the same as the dtype.
TypeError: The ``shape`` must be one of list, tuple and Tensor. The data type of ``shape`` must
be int32 or int64 when it's a Tensor.
Examples: Examples:
.. code-block:: python .. code-block:: python
import paddle.fluid as fluid import paddle.fluid as fluid
data = fluid.layers.zeros(shape=[3, 2], dtype='float32') # [[0., 0.], [0., 0.], [0., 0.]] data = fluid.layers.zeros(shape=[3, 2], dtype='float32') # [[0., 0.], [0., 0.], [0., 0.]]
# shape is a Tensor
shape = fluid.layers.fill_constant(shape=[2], dtype='int32', value=2)
data1 = fluid.layers.zeros(shape=shape, dtype='int32') #[[0, 0], [0, 0]]
""" """
return fill_constant(value=0.0, **locals()) return fill_constant(value=0.0, **locals())
...@@ -1422,26 +1430,26 @@ def linspace(start, stop, num, dtype=None, name=None): ...@@ -1422,26 +1430,26 @@ def linspace(start, stop, num, dtype=None, name=None):
This OP return fixed number of evenly spaced values within a given interval. This OP return fixed number of evenly spaced values within a given interval.
Args: Args:
start(float|Variable): The input :attr:`start` is start variable of range. It is a float scalar, \ start(float|Tensor): The input :attr:`start` is start variable of range. It is a float scalar, \
or a tensor of shape [1] with input data type float32, float64. or a Tensor of shape [1] with input data type float32, float64.
stop(float|Variable): The input :attr:`stop` is start variable of range. It is a float scalar, \ stop(float|Tensor): The input :attr:`stop` is start variable of range. It is a float scalar, \
or a tensor of shape [1] with input data type float32, float64. or a Tensor of shape [1] with input data type float32, float64.
num(int|Variable): The input :attr:`num` is given num of the sequence. It is an int scalar, \ num(int|Tensor): The input :attr:`num` is given num of the sequence. It is an int scalar, \
or a tensor of shape [1] with type int32. or a Tensor of shape [1] with data type int32.
dtype(np.dtype|core.VarDesc.VarType|str): The data type of output tensor, it could be 'float32' and 'float64'. dtype(np.dtype|core.VarDesc.VarType|str, optional): The data type of output tensor, it could be 'float32' and 'float64'.
Default: if None, the data type is `float32`. Default: if None, the data type is float32.
name(str, optional): Normally there is no need for user to set this property. name(str, optional): Normally there is no need for user to set this property.
For more information, please refer to :ref:`api_guide_Name`.Default: None. For more information, please refer to :ref:`api_guide_Name`.Default: None.
Returns: Returns:
Variable, the output data type will be float32, float64.: The 1-D tensor with fixed number of evenly spaced values, \ Tensor: the output data type will be float32, float64. The 1-D tensor with fixed number of evenly spaced values, \
the data shape of this tensor is :math:`[num]` . If the :attr:`num` is set 1, the output tensor just has \ the data shape of this tensor is :math:`[num]` . If the :attr:`num` is set 1, the output tensor just has \
the value with input :attr:`start`. the value with input :attr:`start`.
Raises: Raises:
TypeError: The dtype must be one of float32 and float64. TypeError: The ``dtype`` must be one of float32 and float64.
TypeError: The dtype of `start` and `stop` must be one of float32 and float64. TypeError: The data type of ``start`` and ``stop`` must be one of float32 and float64.
TypeError: The dtype of `num` must be one of int32 and int64. TypeError: The data type of ``num`` must be one of int32 and int64.
Examples: Examples:
...@@ -1577,20 +1585,14 @@ def eye(num_rows, ...@@ -1577,20 +1585,14 @@ def eye(num_rows,
dtype='float32', dtype='float32',
name=None): name=None):
""" """
:alias_main: paddle.eye
:alias: paddle.eye,paddle.tensor.eye,paddle.tensor.creation.eye
:old_api: paddle.fluid.layers.eye
**eye**
This function constructs a or a batch of 2-D tensor with ones on the diagonal and zeros elsewhere. This function constructs a or a batch of 2-D tensor with ones on the diagonal and zeros elsewhere.
Args: Args:
num_rows(int): the number of rows in each batch tensor. num_rows(int): the number of rows in each batch tensor.
num_columns(int, optional): the number of columns in each batch tensor. num_columns(int, optional): the number of columns in each batch tensor.
If None, default: num_rows. If None, default: num_rows.
batch_shape(list(int), optional): If provided, the returned tensor will have a leading batch_shape(list, optional): If provided, the returned tensor will have a leading
batch size of this shape, default is None. batch size of this shape, the data type of ``batch_shape`` is int. Default is None.
dtype(np.dtype|core.VarDesc.VarType|str, optional): The data type of the returned tensor. dtype(np.dtype|core.VarDesc.VarType|str, optional): The data type of the returned tensor.
It should be int32, int64, float16, float32, float64, default is 'float32'. It should be int32, int64, float16, float32, float64, default is 'float32'.
name(str, optional): The default value is None. Normally there is no name(str, optional): The default value is None. Normally there is no
...@@ -1598,7 +1600,7 @@ def eye(num_rows, ...@@ -1598,7 +1600,7 @@ def eye(num_rows,
refer to :ref:`api_guide_Name`. refer to :ref:`api_guide_Name`.
Returns: Returns:
Variable: An identity Tensor or LoDTensor of shape batch_shape + [num_rows, num_columns]. Tensor: An identity Tensor or LoDTensor of shape batch_shape + [num_rows, num_columns].
Raises: Raises:
TypeError: The `dtype` must be one of float16, float32, float64, int32 and int64. TypeError: The `dtype` must be one of float16, float32, float64, int32 and int64.
TypeError: The `num_columns` must be non-negative int. TypeError: The `num_columns` must be non-negative int.
......
python/paddle/tensor/creation.py
浏览文件 @ fc6fed32
...@@ -58,25 +58,25 @@ __all__ = [ ...@@ -58,25 +58,25 @@ __all__ = [
def full_like(x, fill_value, dtype=None, name=None): def full_like(x, fill_value, dtype=None, name=None):
""" """
:alias_main: paddle.full_like :alias_main: paddle.full_like
:alias: paddle.full_like,paddle.tensor.full_like,paddle.tensor.creation.full_like :alias: paddle.tensor.full_like, paddle.tensor.creation.full_like
**full_like** This function creates a tensor filled with ``fill_value`` which has identical shape of ``x`` and ``dtype``.
This function creates a tensor filled with `fill_value` which has identical shape and dtype If the ``dtype`` is None, the data type of Tensor is same with ``x``.
with `input`.
Args: Args:
x(Variable): The input tensor which specifies shape and data type. The data type can be bool, float16, float32, float64, int32, int64. x(Tensor): The input tensor which specifies shape and data type. The data type can be bool, float16, float32, float64, int32, int64.
fill_value(bool|float|int|Variable): The value to fill the tensor with. Note: this value shouldn't exceed the range of the output data type. fill_value(bool|float|int): The value to fill the tensor with. Note: this value shouldn't exceed the range of the output data type.
dtype(np.dtype|core.VarDesc.VarType|str, optional): The data type of output. The data type can be one dtype(np.dtype|core.VarDesc.VarType|str, optional): The data type of output. The data type can be one
of bool, float16, float32, float64, int32, int64. The default value is None, which means the output of bool, float16, float32, float64, int32, int64. The default value is None, which means the output
data type is the same as input. data type is the same as input.
name(str, optional): The default value is None. Normally there is no need for user to set this property. For more information, please refer to :ref:`api_guide_Name` name(str, optional): The default value is None. Normally there is no need for user to set this property. For more information, please refer to :ref:`api_guide_Name`
Returns: Returns:
out(Variable): The Tensor variable storing the output. Tensor: Tensor which is created according to ``x``, ``fill_value`` and ``dtype``.
Raises: Raises:
TypeError: The dtype must be one of bool, float16, float32, float64, int32, int64 and None. TypeError: The data type of ``x`` must be one of bool, float16, float32, float64, int32, int64.
TypeError: The ``dtype`` must be one of bool, float16, float32, float64, int32, int64 and None.
Examples: Examples:
.. code-block:: python .. code-block:: python
...@@ -101,6 +101,9 @@ def full_like(x, fill_value, dtype=None, name=None): ...@@ -101,6 +101,9 @@ def full_like(x, fill_value, dtype=None, name=None):
return core.ops.fill_any_like(x, 'value', fill_value, 'dtype', dtype) return core.ops.fill_any_like(x, 'value', fill_value, 'dtype', dtype)
helper = LayerHelper("full_like", **locals()) helper = LayerHelper("full_like", **locals())
check_variable_and_dtype(
x, 'x', ['bool', 'float16', 'float32', 'float64', 'int32', 'int64'],
'full_like')
check_dtype(dtype, 'dtype', check_dtype(dtype, 'dtype',
['bool', 'float16', 'float32', 'float64', 'int32', 'int64'], ['bool', 'float16', 'float32', 'float64', 'int32', 'int64'],
'full_like/zeros_like/ones_like') 'full_like/zeros_like/ones_like')
...@@ -119,23 +122,24 @@ def full_like(x, fill_value, dtype=None, name=None): ...@@ -119,23 +122,24 @@ def full_like(x, fill_value, dtype=None, name=None):
def ones(shape, dtype=None, name=None): def ones(shape, dtype=None, name=None):
""" """
:alias_main: paddle.ones :alias_main: paddle.ones
:alias: paddle.ones,paddle.tensor.ones,paddle.tensor.creation.ones :alias: paddle.tensor.ones, paddle.tensor.creation.ones
The OP creates a tensor of specified :attr:`shape` and :attr:`dtype`, and fills it with 1. The OP creates a tensor of specified :attr:`shape` and :attr:`dtype`, and fills it with 1.
Args: Args:
shape(tuple|list|Variable): Shape of output tensor, the data type of shape is int32 or int64. shape(tuple|list|Tensor): Shape of the Tensor to be created, the data type of shape is int32 or int64.
dtype(np.dtype|core.VarDesc.VarType|str, optional): Data type of output tensor, it supports dtype(np.dtype|core.VarDesc.VarType|str, optional): Data type of output Tensor, it supports
bool, float16, float32, float64, int32 and int64. Default: if None, the data type is 'float32'. bool, float16, float32, float64, int32 and int64. Default: if None, the data type is 'float32'.
name(str, optional): The default value is None. Normally there is no need for user to set this property. For more information, please refer to :ref:`api_guide_Name` name(str, optional): The default value is None. Normally there is no need for user to set this property. For more information, please refer to :ref:`api_guide_Name`
Returns: Returns:
Variable: A tensor of data type :attr:`dtype` with shape :attr:`shape` and all elements set to 1. Tensor: A tensor of data type :attr:`dtype` with shape :attr:`shape` and all elements set to 1.
Raises: Raises:
TypeError: The dtype must be one of bool, float16, float32, float64, int32, int64 and None TypeError: The ``dtype`` must be one of bool, float16, float32, float64, int32, int64 and None
and the data type of out Tensor must be the same as the dtype. and the data type of out Tensor must be the same as the dtype.
TypeError: The `shape` must be one of list, tuple and Variable. TypeError: The ``shape`` must be one of list, tuple and Tensor. The data type of ``shape`` must
be int32 or int64 when it's a Tensor.
Examples: Examples:
.. code-block:: python .. code-block:: python
...@@ -143,7 +147,7 @@ def ones(shape, dtype=None, name=None): ...@@ -143,7 +147,7 @@ def ones(shape, dtype=None, name=None):
import paddle import paddle
paddle.enable_imperative() paddle.enable_imperative()
#default dtype for ones OP # default dtype for ones OP
data1 = paddle.ones(shape=[3, 2]) data1 = paddle.ones(shape=[3, 2])
# [[1. 1.] # [[1. 1.]
# [1. 1.] # [1. 1.]
...@@ -153,7 +157,7 @@ def ones(shape, dtype=None, name=None): ...@@ -153,7 +157,7 @@ def ones(shape, dtype=None, name=None):
# [[1 1] # [[1 1]
# [1 1]] # [1 1]]
#shape is a Variable # shape is a Tensor
shape = paddle.fill_constant(shape=[2], dtype='int32', value=2) shape = paddle.fill_constant(shape=[2], dtype='int32', value=2)
data3 = paddle.ones(shape=shape, dtype='int32') data3 = paddle.ones(shape=shape, dtype='int32')
# [[1 1] # [[1 1]
...@@ -210,19 +214,25 @@ def ones_like(x, dtype=None, name=None): ...@@ -210,19 +214,25 @@ def ones_like(x, dtype=None, name=None):
def zeros(shape, dtype=None, name=None): def zeros(shape, dtype=None, name=None):
""" """
:alias_main: paddle.zeros :alias_main: paddle.zeros
:alias: paddle.zeros,paddle.tensor.zeros,paddle.tensor.creation.zeros :alias: paddle.tensor.zeros, paddle.tensor.creation.zeros
The OP creates a tensor of specified :attr:`shape` and :attr:`dtype`, and fills it with 0. The OP creates a tensor of specified :attr:`shape` and :attr:`dtype`, and fills it with 0.
Args: Args:
shape(tuple|list|Variable): Shape of output tensor. The data type of shape is int32 or int64. shape(tuple|list|Tensor): Shape of the Tensor to be created, the data type of ``shape`` is int32 or int64.
dtype(np.dtype|core.VarDesc.VarType|str, optional): Data type of output tensor, it supports dtype(np.dtype|core.VarDesc.VarType|str, optional): Data type of output Tensor, it supports
bool, float16, float32, float64, int32 and int64. Default: if None, the date type is float32. bool, float16, float32, float64, int32 and int64. Default: if None, the date type is float32.
name(str, optional): The default value is None. Normally there is no need for user to set this name(str, optional): The default value is None. Normally there is no need for user to set this
property. For more information, please refer to :ref:`api_guide_Name`. property. For more information, please refer to :ref:`api_guide_Name`.
Returns: Returns:
Variable: A tensor of data type :attr:`dtype` with shape :attr:`shape` and all elements set to 0. Tensor: A tensor of data type :attr:`dtype` with shape :attr:`shape` and all elements set to 0.
Raises:
TypeError: The ``dtype`` must be one of bool, float16, float32, float64, int32, int64 and None
and the data type of out Tensor must be the same as the dtype.
TypeError: The ``shape`` must be one of list, tuple and Tensor. The data type of ``shape`` must
be int32 or int64 when it's a Tensor.
Examples: Examples:
.. code-block:: python .. code-block:: python
...@@ -230,8 +240,19 @@ def zeros(shape, dtype=None, name=None): ...@@ -230,8 +240,19 @@ def zeros(shape, dtype=None, name=None):
import paddle import paddle
paddle.enable_imperative() # Now we are in imperative mode paddle.enable_imperative() # Now we are in imperative mode
data = paddle.zeros(shape=[3, 2], dtype='float32') # [[0., 0.], [0., 0.], [0., 0.]] data = paddle.zeros(shape=[3, 2], dtype='float32')
data = paddle.zeros(shape=[2, 2], dtype='int32', name='zeros') # [[0, 0], [0, 0]] # [[0. 0.]
# [0. 0.]
# [0. 0.]]
data = paddle.zeros(shape=[2, 2])
# [[0. 0.]
# [0. 0.]]
# shape is a Tensor
shape = paddle.fill_constant(shape=[2], dtype='int32', value=2)
data3 = paddle.ones(shape=shape, dtype='int32')
# [[0 0]
# [0 0]]
""" """
if dtype is None: if dtype is None:
dtype = 'float32' dtype = 'float32'
...@@ -283,27 +304,31 @@ def zeros_like(x, dtype=None, name=None): ...@@ -283,27 +304,31 @@ def zeros_like(x, dtype=None, name=None):
def eye(num_rows, num_columns=None, dtype=None, name=None): def eye(num_rows, num_columns=None, dtype=None, name=None):
""" """
:alias_main: paddle.eye
:alias: paddle.tensor.eye, paddle.tensor.creation.eye
This function constructs 2-D Tensor with ones on the diagonal and zeros elsewhere. This function constructs 2-D Tensor with ones on the diagonal and zeros elsewhere.
Args: Args:
num_rows(int): the number of rows in each batch tensor. num_rows(int): the number of rows in each batch Tensor.
num_columns(int, optional): the number of columns in each batch tensor. num_columns(int, optional): the number of columns in each batch Tensor.
If None, default: num_rows. If None, default: num_rows.
dtype(np.dtype|core.VarDesc.VarType|str, optional): The data type of the returned tensor. dtype(np.dtype|core.VarDesc.VarType|str, optional): The data type of the returned Tensor.
It should be int32, int64, float16, float32, float64. Default: if None, the data type It should be int32, int64, float16, float32, float64. Default: if None, the data type
is float32. is float32.
name(str, optional): The default value is None. Normally there is no need for name(str, optional): The default value is None. Normally there is no need for
user to set this property. For more information, please refer to :ref:`api_guide_Name` user to set this property. For more information, please refer to :ref:`api_guide_Name`
Returns: Returns:
Variable: An identity Tensor or LoDTensor of shape [num_rows, num_columns]. Tensor: An identity Tensor or LoDTensor of shape [num_rows, num_columns].
Raises: Raises:
TypeError: The `dtype` must be one of float16, float32, float64, int32 int64 and None. TypeError: The ``dtype`` must be one of float16, float32, float64, int32 int64 and None.
TypeError: The `num_columns` must be non-negative int. TypeError: The ``num_columns`` must be non-negative int.
Examples: Examples:
.. code-block:: python .. code-block:: python
import paddle import paddle
paddle.enable_imperative() # Now we are in imperative mode paddle.enable_imperative() # Now we are in imperative mode
...@@ -330,29 +355,30 @@ def eye(num_rows, num_columns=None, dtype=None, name=None): ...@@ -330,29 +355,30 @@ def eye(num_rows, num_columns=None, dtype=None, name=None):
def full(shape, fill_value, dtype=None, name=None): def full(shape, fill_value, dtype=None, name=None):
""" """
:alias_main: paddle.full :alias_main: paddle.full
:alias: paddle.full,paddle.tensor.full,paddle.tensor.creation.full :alias: paddle.tensor.full, paddle.tensor.creation.full
This Op return a Tensor with the `fill_value` which size is same as `shape` This Op return a Tensor with the ``fill_value`` which size is same as ``shape``.
Args: Args:
shape(list|tuple|Variable): Shape of the Tensor to be created. shape(list|tuple|Tensor): Shape of the Tensor to be created.
The data type is ``int32`` or ``int64`` . If ``shape`` is a list or tuple, The data type is ``int32`` or ``int64`` . If ``shape`` is a list or tuple,
the elements of it should be integers or Tensors with shape [1]. the elements of it should be integers or Tensors with shape [1].
If ``shape`` is an Variable, it should be an 1-D Tensor . If ``shape`` is an Tensor, it should be an 1-D Tensor .
fill_value(bool|float16|float32|float64|int32|int64|Variable): The constant value fill_value(bool|float|int|Tensor): The constant value
used to initialize the Tensor to be created. If fill_value is an Variable, it must be an 1-D Tensor. used to initialize the Tensor to be created. If ``fill_value`` is an Tensor, it must be an 1-D Tensor.
dtype(np.dtype|core.VarDesc.VarType|str, optional): Data type of the output tensor dtype(np.dtype|core.VarDesc.VarType|str, optional): Data type of the output Tensor
which can be float16, float32, float64, int32, int64, if dytpe is `None`, the data which can be float16, float32, float64, int32, int64, if dytpe is `None`, the data
type of created tensor is `float32` type of created Tensor is `float32`
name(str, optional): The default value is None. Normally there is no need for user to set this name(str, optional): The default value is None. Normally there is no need for user to set this
property. For more information, please refer to :ref:`api_guide_Name`. property. For more information, please refer to :ref:`api_guide_Name`.
Returns: Returns:
Variable: Tensor which is created according to shape and dtype. Tensor: Tensor which is created according to ``shape``, ``fill_value`` and ``dtype``.
Raises: Raises:
TypeError: The `dtype` must be one of None, bool, float16, float32, float64, int32 and int64. TypeError: The ``dtype`` must be one of None, bool, float16, float32, float64, int32 and int64.
TypeError: The `shape` must be one of Variable, list and tuple. TypeError: The ``shape`` must be one of Tensor, list and tuple. The data type of ``shape`` must
be int32 or int64 when the it's a Tensor
Examples: Examples:
.. code-block:: python .. code-block:: python
...@@ -364,18 +390,18 @@ def full(shape, fill_value, dtype=None, name=None): ...@@ -364,18 +390,18 @@ def full(shape, fill_value, dtype=None, name=None):
#[[0] #[[0]
# [0]] # [0]]
# attr shape is a list which contains Variable Tensor. # attr shape is a list which contains Tensor.
positive_2 = paddle.fill_constant([1], "int32", 2) positive_2 = paddle.fill_constant([1], "int32", 2)
data3 = paddle.full(shape=[1, positive_2], dtype='float32', fill_value=1.5) data3 = paddle.full(shape=[1, positive_2], dtype='float32', fill_value=1.5)
# [[1.5 1.5]] # [[1.5 1.5]]
# attr shape is an Variable Tensor. # attr shape is a Tensor.
shape = paddle.fill_constant([2], "int32", 2) shape = paddle.fill_constant([2], "int32", 2)
data4 = paddle.full(shape=shape, dtype='bool', fill_value=True) data4 = paddle.full(shape=shape, dtype='bool', fill_value=True)
# [[True True] # [[True True]
# [True True]] # [True True]]
# attr fill_value is an Variable Tensor. # attr fill_value is a Tensor.
val = paddle.fill_constant([1], "float32", 2.0) val = paddle.fill_constant([1], "float32", 2.0)
data5 = paddle.full(shape=[2,1], fill_value=val, dtype='float32') data5 = paddle.full(shape=[2,1], fill_value=val, dtype='float32')
# [[2.0] # [[2.0]
......
python/paddle/tensor/manipulation.py
浏览文件 @ fc6fed32
...@@ -54,27 +54,27 @@ __all__ = [ ...@@ -54,27 +54,27 @@ __all__ = [
def concat(x, axis=0, name=None): def concat(x, axis=0, name=None):
""" """
:alias_main: paddle.concat :alias_main: paddle.concat
:alias: paddle.concat,paddle.tensor.concat,paddle.tensor.manipulation.concat :alias: paddle.tensor.concat, paddle.tensor.manipulation.concat
This OP concatenates the input along the axis. This OP concatenates the input along the axis.
Args: Args:
x(list): List of input Tensors with data type float16, float32, float64, int32, int64. x(list): List of input Tensors with data type float16, float32, float64, int32, int64.
All the Tensors in ``x`` must have same data type. All the Tensors in ``x`` must have same data type.
axis(int|Variable, optional): Specify the axis to operate on the input Tensors. axis(int|Tensor, optional): Specify the axis to operate on the input Tensors.
It's a scalar with type ``int`` or a ``Tensor`` with shape [1] and data type ``int32`` It's a scalar with data type int or a Tensor with shape [1] and data type int32
or ``int64``. The effective range is [-R, R), where R is Rank(x). When ``axis < 0``, or int64. The effective range is [-R, R), where R is Rank(x). When ``axis < 0``,
it works the same way as axis+R. Default is 0. it works the same way as ``axis+R``. Default is 0.
name (str, optional): The default value is None. Normally there is no name (str, optional): The default value is None. Normally there is no
need for user to set this property. For more information, please need for user to set this property. For more information, please
refer to :ref:`api_guide_Name`. refer to :ref:`api_guide_Name`.
Raises: Raises:
TypeError: The dtype of ``x`` must be one of float16, float32, float64, int32 and int64. TypeError: The dtype of ``x`` must be one of float16, float32, float64, int32 and int64.
TypeError: The ``axis`` must be int or Variable. The dtype of ``axis`` must be int32 or int64 when it's a Tensor. TypeError: The ``axis`` must be int or Tensor. The dtype of ``axis`` must be int32 or int64 when it's a Tensor.
TypeError: All the Tensors in ``x`` must have the same data type. TypeError: All the Tensors in ``x`` must have the same data type.
Returns: Returns:
Variable: A Tensor with the same data type as ``x``. Tensor: A Tensor with the same data type as ``x``.
Examples: Examples:
.. code-block:: python .. code-block:: python
......
python/paddle/tensor/search.py
浏览文件 @ fc6fed32
...@@ -223,27 +223,27 @@ def argmax(input, axis=None, dtype=None, out=None, keepdims=False, name=None): ...@@ -223,27 +223,27 @@ def argmax(input, axis=None, dtype=None, out=None, keepdims=False, name=None):
def index_select(x, index, axis=0, name=None): def index_select(x, index, axis=0, name=None):
""" """
:alias_main: paddle.index_select :alias_main: paddle.index_select
:alias: paddle.index_select,paddle.tensor.index_select,paddle.tensor.search.index_select :alias: paddle.tensor.index_select, paddle.tensor.search.index_select
Returns a new tensor which indexes the `input` tensor along dimension `dim` using Returns a new tensor which indexes the ``input`` tensor along dimension ``axis`` using
the entries in `index` which is a Tensor. The returned tensor has the same number the entries in ``index`` which is a Tensor. The returned tensor has the same number
of dimensions as the original `input` tensor. The dim-th dimension has the same of dimensions as the original ``x`` tensor. The dim-th dimension has the same
size as the length of `index`; other dimensions have the same size as in the `input` tensor. size as the length of ``index``; other dimensions have the same size as in the ``x`` tensor.
Args: Args:
x (Variable): The input tensor variable.The dtype of x can be one of float32, float64, int32, int64. x (Tensor): The input Tensor to be operated. The data of ``x`` can be one of float32, float64, int32, int64.
index (Variable): The 1-D tensor containing the indices to index.the dtype of index can be int32 or int64. index (Tensor): The 1-D Tensor containing the indices to index. The data type of ``index`` must be int32 or int64.
axis (int, optional): The dimension in which we index. Default: if None, the axis is 0. axis (int, optional): The dimension in which we index. Default: if None, the ``axis`` is 0.
name(str, optional): The default value is None. Normally there is no name(str, optional): The default value is None. Normally there is no
need for user to set this property. For more information, please need for user to set this property. For more information, please
refer to :ref:`api_guide_Name`. refer to :ref:`api_guide_Name`.
Returns: Returns:
Variable: A Tensor with same data type as `input`. Tensor: A Tensor with same data type as ``x``.
Raises: Raises:
TypeError: x must be a Variable and the dtype of x must be one of float32, float64, int32 and int64. TypeError: ``x`` must be a Tensor and the data type of ``x`` must be one of float32, float64, int32 and int64.
TypeError: index must be a Variable adn the dtype of index must be int32 or int64. TypeError: ``index`` must be a Tensor and the data type of ``index`` must be int32 or int64.
Examples: Examples:
.. code-block:: python .. code-block:: python
......
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