tf.keras.backend.in_train_phase

Selects x in train phase, and alt otherwise.

Compat aliases for migration

See Migration guide for more details.

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()`.

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Last updated 2020-10-01 UTC.

Arguments