Function accuracy

tfjs-vis/src/util/math.ts:242–254

(
    labels: Tensor, predictions: Tensor)

 * @doc {heading: 'Metrics', namespace: 'metrics'}
 */
export async function accuracy(
    labels: Tensor, predictions: Tensor): Promise<number> {
  assertShapesMatch(
      labels.shape, predictions.shape, 'Error computing accuracy.');

  const eq = labels.equal(predictions);
  const mean = eq.mean();

  const acc = (await mean.data())[0];

  dispose([eq, mean]);
  return acc;
}

/**
 * Computes per class accuracy between prediction and labels. Each value in