Source code for xorbits._mars.tensor.base.broadcast_arrays
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# http://www.apache.org/licenses/LICENSE-2.0
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from ...core import ExecutableTuple
from ..datasource import tensor as astensor
from ..utils import broadcast_shape
from .broadcast_to import broadcast_to
[docs]def broadcast_arrays(*args, **kwargs):
"""
Broadcast any number of arrays against each other.
Parameters
----------
`*args` : array_likes
The tensors to broadcast.
Returns
-------
broadcasted : list of tensors
Examples
--------
>>> import mars.tensor as mt
>>> x = mt.array([[1,2,3]])
>>> y = mt.array([[1],[2],[3]])
>>> mt.broadcast_arrays(x, y).execute()
[array([[1, 2, 3],
[1, 2, 3],
[1, 2, 3]]), array([[1, 1, 1],
[2, 2, 2],
[3, 3, 3]])]
"""
if kwargs:
raise TypeError(
"broadcast_arrays() got an unexpected keyword "
f"argument {next(iter(kwargs.keys()))!r}"
)
args = [astensor(arg) for arg in args]
shape = broadcast_shape(*[arg.shape for arg in args])
return ExecutableTuple([broadcast_to(a, shape) for a in args])