| |
| |
| ``mx.nd.broadcast.like`` |
| ================================================ |
| |
| Description |
| ---------------------- |
| |
| Broadcasts lhs to have the same shape as rhs. |
| |
| Broadcasting is a mechanism that allows NDArrays to perform arithmetic operations |
| with arrays of different shapes efficiently without creating multiple copies of arrays. |
| Also see, `Broadcasting <https://docs.scipy.org/doc/numpy/user/basics.broadcasting.html>`_ for more explanation. |
| |
| Broadcasting is allowed on axes with size 1, such as from `(2,1,3,1)` to |
| `(2,8,3,9)`. Elements will be duplicated on the broadcasted axes. |
| |
| For example:: |
| |
| broadcast_like([[1,2,3]], [[5,6,7],[7,8,9]]) = [[ 1., 2., 3.], |
| [ 1., 2., 3.]]) |
| |
| broadcast_like([9], [1,2,3,4,5], lhs_axes=(0,), rhs_axes=(-1,)) = [9,9,9,9,9] |
| |
| |
| |
| |
| |
| Arguments |
| ------------------ |
| |
| +----------------------------------------+------------------------------------------------------------+ |
| | Argument | Description | |
| +========================================+============================================================+ |
| | ``lhs`` | NDArray-or-Symbol. | |
| | | | |
| | | First input. | |
| +----------------------------------------+------------------------------------------------------------+ |
| | ``rhs`` | NDArray-or-Symbol. | |
| | | | |
| | | Second input. | |
| +----------------------------------------+------------------------------------------------------------+ |
| | ``lhs.axes`` | Shape or None, optional, default=None. | |
| | | | |
| | | Axes to perform broadcast on in the first input array | |
| +----------------------------------------+------------------------------------------------------------+ |
| | ``rhs.axes`` | Shape or None, optional, default=None. | |
| | | | |
| | | Axes to copy from the second input array | |
| +----------------------------------------+------------------------------------------------------------+ |
| |
| Value |
| ---------- |
| |
| ``out`` The result mx.ndarray |
| |
| |
| Link to Source Code: http://github.com/apache/incubator-mxnet/blob/1.6.0/src/operator/tensor/broadcast_reduce_op_value.cc#L135 |
| |
