MathPHP\Probability\Distribution\Continuous\NoncentralTTest::testPDF PHP Method

    public function testPDF($t, $ν, $μ, $expected)
    {
        $actual = NoncentralT::PDF($t, $ν, $μ);
        $tol = abs(self::ε * $expected);
        $this->assertEquals($expected, $actual, '', $tol);
    }