54 lines
1.9 KiB
PHP
54 lines
1.9 KiB
PHP
<?php
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namespace PhpOffice\PhpSpreadsheetTests\Calculation\Functions\Statistical;
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use PhpOffice\PhpSpreadsheet\Calculation\Calculation;
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use PhpOffice\PhpSpreadsheet\Calculation\Functions;
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use PhpOffice\PhpSpreadsheet\Calculation\Statistical;
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use PHPUnit\Framework\TestCase;
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class ForecastTest extends TestCase
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{
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protected function setUp(): void
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{
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Functions::setCompatibilityMode(Functions::COMPATIBILITY_EXCEL);
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}
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/**
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* @dataProvider providerFORECAST
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*
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* @param mixed $expectedResult
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*/
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public function testFORECAST($expectedResult, ...$args): void
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{
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$result = Statistical::FORECAST(...$args);
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self::assertEqualsWithDelta($expectedResult, $result, 1E-12);
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}
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public function providerFORECAST(): array
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{
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return require 'tests/data/Calculation/Statistical/FORECAST.php';
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}
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/**
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* @dataProvider providerForecastArray
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*/
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public function testForecastArray(array $expectedResult, string $testValues, string $yValues, string $xValues): void
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{
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$calculation = Calculation::getInstance();
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$formula = "=FORECAST({$testValues}, {$yValues}, {$xValues})";
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$result = $calculation->_calculateFormulaValue($formula);
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self::assertEqualsWithDelta($expectedResult, $result, 1.0e-14);
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}
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public function providerForecastArray(): array
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{
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return [
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'row vector' => [[[-11.047619047619047, 22.95238095238095, 42.38095238095237]], '{-2, 5, 9}', '{3, 7, 15, 20, 22, 27}', '{1, 2, 3, 4, 5, 6}'],
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'column vector' => [[[-11.047619047619047], [22.95238095238095], [42.38095238095237]], '{-2; 5; 9}', '{3, 7, 15, 20, 22, 27}', '{1, 2, 3, 4, 5, 6}'],
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'matrix' => [[[-11.047619047619047, 22.95238095238095], [42.38095238095237, 15.66666666666666]], '{-2, 5; 9, 3.5}', '{3, 7, 15, 20, 22, 27}', '{1, 2, 3, 4, 5, 6}'],
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];
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}
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}
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