tf.keras.backend.switch

tf.keras.backend.switch(
    condition,
    then_expression,
    else_expression
)

Defined in tensorflow/python/keras/_impl/keras/backend.py.

Switches between two operations depending on a scalar value.

Note that both then_expression and else_expression should be symbolic tensors of the same shape.

Arguments:

  • condition: tensor (int or bool).
  • then_expression: either a tensor, or a callable that returns a tensor.
  • else_expression: either a tensor, or a callable that returns a tensor.

Returns:

The selected tensor.

Raises:

  • ValueError: If rank of condition is greater than rank of expressions.