tf.keras.utils.to_categorical

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

tf.keras.utils.to_categorical(
    y, num_classes=None, dtype='float32'
)

E.g. for use with categorical_crossentropy.

Arguments:

• 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'.

Returns:

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