tf.keras.backend.ones

TensorFlow 2 version View source on GitHub

Instantiates an all-ones variable and returns it.

tf.keras.backend.ones(
    shape, dtype=None, name=None
)

shape Tuple of integers, shape of returned Keras variable.
dtype String, data type of returned Keras variable.
name String, name of returned Keras variable.

A Keras variable, filled with 1.0. Note that if shape was symbolic, we cannot return a variable, and will return a dynamically-shaped tensor instead.

Example:

from keras import backend as K
kvar = K.ones((3,4))
K.eval(kvar)
array([[ 1.,  1.,  1.,  1.],
       [ 1.,  1.,  1.,  1.],
       [ 1.,  1.,  1.,  1.]], dtype=float32)