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tf.keras.backend.repeat_elements

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Repeats the elements of a tensor along an axis, like np.repeat.

tf.keras.backend.repeat_elements(
    x, rep, axis
)

If x has shape (s1, s2, s3) and axis is 1, the output will have shape (s1, s2 * rep, s3).

Arguments
x Tensor or variable.
rep Python integer, number of times to repeat.
axis Axis along which to repeat.
Returns
A tensor.

Example:

b = tf.constant([1, 2, 3])
tf.keras.backend.repeat_elements(b, rep=2, axis=0)
<tf.Tensor: shape=(6,), dtype=int32,
    numpy=array([1, 1, 2, 2, 3, 3], dtype=int32)>

© 2020 The TensorFlow Authors. All rights reserved.
Licensed under the Creative Commons Attribution License 3.0.
Code samples licensed under the Apache 2.0 License.
https://www.tensorflow.org/versions/r2.3/api_docs/python/tf/keras/backend/repeat_elements