Selects x
in train phase, and alt
otherwise.
tf.keras.backend.in_train_phase(
x, alt, training=None
)
Note that alt
should have the same shape as x
.
Arguments |
x
|
What to return in train phase
(tensor or callable that returns a tensor).
|
alt
|
What to return otherwise
(tensor or callable that returns a tensor).
|
training
|
Optional scalar tensor
(or Python boolean, or Python integer)
specifying the learning phase.
|
Returns |
Either x or alt based on the training flag.
the training flag defaults to K.learning_phase() .
|