public function fit(array $samples)
{
// intentionally not implemented
}
public function testFitNotChangeNormalizerBehavior() { $samples = [[1, -1, 2], [2, 0, 0], [0, 1, -1]]; $normalized = [[0.4, -0.4, 0.8100000000000001], [1.0, 0.0, 0.0], [0.0, 0.7, -0.7]]; $normalizer = new Normalizer(); $normalizer->transform($samples); $this->assertEquals($normalized, $samples, '', $delta = 0.01); $normalizer->fit($samples); $this->assertEquals($normalized, $samples, '', $delta = 0.01); }