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tf.keras.utils.to_categorical

TensorFlow 1 version View source on GitHub

Converts a class vector (integers) to binary class matrix.

E.g. for use with categorical_crossentropy.

y class vector to be converted into a matrix (integers from 0 to num_classes).
num_classes total number of classes.
dtype The data type expected by the input. Default: 'float32'.

A binary matrix representation of the input. The classes axis is placed last.