x
in train phase, and alt
otherwise.Note that alt
should have the same shape as x
.
k_in_train_phase(x, alt, training = NULL)
Either x
or alt
based on the training
flag. the training
flag defaults to k_learning_phase()
.
What to return in train phase (tensor or function that returns a tensor).
What to return otherwise (tensor or function that returns a tensor).
Optional scalar tensor (or R logical or integer) specifying the learning phase.
This function is part of a set of Keras backend functions that enable lower level access to the core operations of the backend tensor engine (e.g. TensorFlow, CNTK, Theano, etc.).
You can see a list of all available backend functions here: https://tensorflow.rstudio.com/reference/keras/index.html#backend.