tf.keras.backend.eye

tf.keras.backend.eye(
    size,
    dtype=None,
    name=None
)

Defined in tensorflow/python/keras/_impl/keras/backend.py.

Instantiate an identity matrix and returns it.

Arguments:

• size: Integer, number of rows/columns.
• dtype: String, data type of returned Keras variable.
• name: String, name of returned Keras variable.

Returns:

A Keras variable, an identity matrix.

Example:

>>> from keras import backend as K
>>> kvar = K.eye(3)
>>> K.eval(kvar)
array([[ 1.,  0.,  0.],
       [ 0.,  1.,  0.],
       [ 0.,  0.,  1.]], dtype=float32)