# to_categorical: Converts a class vector (integers) to binary class matrix.

## Description

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

## Usage

to_categorical(y, num_classes = NULL, dtype = "float32")

## Value

A binary matrix representation of the input.

## 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, as a string

## Details

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

.