flax.linen.log_softmax

flax.linen.log_softmax(x, axis=- 1, where=None, initial=None)[source]

Log-Softmax function.

Computes the logarithm of the softmax function, which rescales elements to the range \([-\infty, 0)\).

\[\mathrm{log\_softmax}(x) = \log \left( \frac{\exp(x_i)}{\sum_j \exp(x_j)} \right)\]
Parameters
  • x (Any) – input array

  • axis (Optional[Union[int, Tuple[int, ...]]]) – the axis or axes along which the log_softmax should be computed. Either an integer or a tuple of integers.

  • where (Optional[Any]) – Elements to include in the log_softmax.

  • initial (Optional[Any]) – The minimum value used to shift the input array. Must be present when where is not None.

Return type

Any