transform($samples); $this->assertEquals($normalized, $samples, '', $delta = 0.01); } public function testNormalizeSamplesWithL1Norm() { $samples = [ [1, -1, 2], [2, 0, 0], [0, 1, -1], ]; $normalized = [ [0.25, -0.25, 0.5], [1.0, 0.0, 0.0], [0.0, 0.5, -0.5], ]; $normalizer = new Normalizer(Normalizer::NORM_L1); $normalizer->transform($samples); $this->assertEquals($normalized, $samples, '', $delta = 0.01); } }