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67 lines
1.9 KiB
67 lines
1.9 KiB
<?php
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use PhpOffice\PhpSpreadsheet\Spreadsheet;
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require __DIR__ . '/../../Header.php';
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$category = 'Engineering';
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$functionName = 'ERF';
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$description = 'Returns the error function integrated between lower_limit and upper_limit';
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$helper->titles($category, $functionName, $description);
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// Create new PhpSpreadsheet object
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$spreadsheet = new Spreadsheet();
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$worksheet = $spreadsheet->getActiveSheet();
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// Add some data
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$testData1 = [
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[0.745],
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[1],
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[1.5],
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[-2],
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];
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$testData2 = [
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[0, 1.5],
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[1, 2],
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[-2, 1],
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];
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$testDataCount1 = count($testData1);
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$testDataCount2 = count($testData2);
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$testData2StartRow = $testDataCount1 + 1;
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$worksheet->fromArray($testData1, null, 'A1', true);
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$worksheet->fromArray($testData2, null, "A{$testData2StartRow}", true);
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for ($row = 1; $row <= $testDataCount1; ++$row) {
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$worksheet->setCellValue('C' . $row, '=ERF(A' . $row . ')');
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}
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for ($row = $testDataCount1 + 1; $row <= $testDataCount2 + $testDataCount1; ++$row) {
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$worksheet->setCellValue('C' . $row, '=ERF(A' . $row . ', B' . $row . ')');
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}
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// Test the formulae
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$helper->log('ERF() With a single argument');
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for ($row = 1; $row <= $testDataCount1; ++$row) {
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$helper->log(sprintf(
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'(C%d): %s The error function integrated between 0 and %f is %f',
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$row,
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$worksheet->getCell('C' . $row)->getValue(),
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$worksheet->getCell('A' . $row)->getValue(),
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$worksheet->getCell('C' . $row)->getCalculatedValue(),
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));
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}
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$helper->log('ERF() With two arguments');
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for ($row = $testDataCount1 + 1; $row <= $testDataCount2 + $testDataCount1; ++$row) {
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$helper->log(sprintf(
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'(C%d): %s The error function integrated between %f and %f is %f',
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$row,
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$worksheet->getCell('C' . $row)->getValue(),
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$worksheet->getCell('A' . $row)->getValue(),
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$worksheet->getCell('B' . $row)->getValue(),
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$worksheet->getCell('C' . $row)->getCalculatedValue(),
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));
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}
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