jax.numpy.expand_dims

jax.numpy.expand_dims(a, axis)

Expand the shape of an array.

LAX-backend implementation of numpy.expand_dims().

Original docstring below.

Insert a new axis that will appear at the axis position in the expanded array shape.

Parameters:

• a (array_like) – Input array.

• axis (int or tuple of ints) –

  Position in the expanded axes where the new axis (or axes) is placed.

  Deprecated since version 1.13.0: Passing an axis where axis > a.ndim will be treated as axis == a.ndim, and passing axis < -a.ndim - 1 will be treated as axis == 0. This behavior is deprecated.

  Changed in version 1.18.0: A tuple of axes is now supported. Out of range axes as described above are now forbidden and raise an AxisError.

Returns:

result – View of a with the number of dimensions increased.

Return type:

ndarray