MathPHP\Statistics\Regression\LinearTest::testGetYs PHP Method

    public function testGetYs()
    {
        $points = [[1, 2], [2, 3], [4, 5], [5, 7], [6, 8]];
        $regression = new Linear($points);
        $this->assertEquals([2, 3, 5, 7, 8], $regression->getYs());
    }