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

to_categorical(y, num_classes = NULL)

## Arguments

y |
Class vector to be converted into a matrix (integers from 0 to num_classes). |

num_classes |
Total number of classes. |

## Value

A binary matrix representation of the input.

## Details

E.g. for use with `loss_categorical_crossentropy()`

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