tf.keras.backend.zeros
Instantiates an all-zeros variable and returns it.
tf.keras.backend.zeros(
shape, dtype=None, name=None
)
Arguments |
shape | Tuple or list of integers, shape of returned Keras variable |
dtype | data type of returned Keras variable |
name | name of returned Keras variable |
Returns |
A variable (including Keras metadata), filled with 0.0 . Note that if shape was symbolic, we cannot return a variable, and will return a dynamically-shaped tensor instead. |
Example:
kvar = tf.keras.backend.zeros((3,4))
tf.keras.backend.eval(kvar)
array([[0., 0., 0., 0.],
[0., 0., 0., 0.],
[0., 0., 0., 0.]], dtype=float32)
A = tf.constant([1,2,3])
kvar2 = tf.keras.backend.zeros(A.shape) # [0., 0., 0.]
tf.keras.backend.eval(kvar2)
array([0., 0., 0.], dtype=float32)
kvar3 = tf.keras.backend.zeros(A.shape,dtype=tf.int32)
tf.keras.backend.eval(kvar3)
array([0, 0, 0], dtype=int32)
kvar4 = tf.keras.backend.zeros([2,3])
tf.keras.backend.eval(kvar4)
array([[0., 0., 0.],
[0., 0., 0.]], dtype=float32)