/** * @dataProvider dataProviderForPDF */ public function testPDF($x, $μ, $σ, $pdf) { $this->assertEquals($pdf, Normal::PDF($x, $μ, $σ), '', 0.001); }
public function testPDF() { $this->assertEquals(Normal::PDF(1, 0, 1), StandardNormal::PDF(1)); $this->assertEquals(Normal::PDF(5, 0, 1), StandardNormal::PDF(5)); $this->assertEquals(Normal::PDF(10.23, 0, 1), StandardNormal::PDF(10.23)); }