Function accuracy

examples/machine_learning/naive_bayes.cpp:21–23

Get accuracy of the predicted results

// Get accuracy of the predicted results
float accuracy(const array &predicted, const array &target) {
    return 100 * count<float>(predicted == target) / target.elements();
}

void naive_bayes_train(float *priors, array &mu, array &sig2,
                       const array &train_feats, const array &train_classes,