MCordingley\Regression\Tests\StatisticsGatherer\LinearTest::testStatistics PHP Метод

    public function testStatistics()
    {
        $observations = Observations::fromArray($this->getFeatures(), $this->getOutcomes());
        $coefficients = [1.0954970633022, 0.92451598868827];
        $predictor = new LinearPredictor($coefficients);
        $statisticsGatherer = new LinearStatisticsGatherer($observations, $coefficients, $predictor);
        static::assertEquals(4, $statisticsGatherer->getDegreesOfFreedomTotal());
        static::assertEquals(3, $statisticsGatherer->getDegreesOfFreedomError());
        static::assertEquals(1, $statisticsGatherer->getDegreesOfFreedomModel());
        static::assertEquals(1.94, round($statisticsGatherer->getFStatistic(), 2));
        static::assertEquals(0.39, round($statisticsGatherer->getRSquared(), 2));
        $stdErrorCoefficients = $statisticsGatherer->getStandardErrorCoefficients();
        static::assertEquals(1.51, round($stdErrorCoefficients[0], 2));
        static::assertEquals(0.66, round($stdErrorCoefficients[1], 2));
        static::assertEquals(1.42, round($statisticsGatherer->getStandardError(), 2));
        $tStatistics = $statisticsGatherer->getTStatistics();
        static::assertEquals(0.73, round($tStatistics[0], 2));
        static::assertEquals(1.39, round($tStatistics[1], 2));
    }