Function precision

Computes the precision of the predictions with respect to the labels.

Example:

const x = tf.tensor2d(
   [
     [0, 0, 0, 1],
     [0, 1, 0, 0],
     [0, 0, 0, 1],
     [1, 0, 0, 0],
     [0, 0, 1, 0]
   ]
);

const y = tf.tensor2d(
   [
     [0, 0, 1, 0],
     [0, 1, 0, 0],
     [0, 0, 0, 1],
     [0, 1, 0, 0],
     [0, 1, 0, 0]
   ]
);

const precision = tf.metrics.precision(x, y);
precision.print();
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