Files
PhpSpreadsheet/samples/Engineering/DELTA.php
T
oleibman b3de003aa5 Reorganize Samples
The samples have become unwieldy when running them from a browser. In particular, the drop-down lists are fixed size with no scrolling, and many of them are now just too large. I have moved all the Calculation samples up a level, and broken several categories (Basic, Chart, DateTime, Engineering, Financial, and Reader) into several pieces.

Convert-Online (now found in the Engineering category) had a number of different problems which are now resolved. It is the only member with any significant code change.
2024-02-03 07:25:29 -08:00

49 lines
1.3 KiB
PHP

<?php
use PhpOffice\PhpSpreadsheet\Spreadsheet;
require __DIR__ . '/../../Header.php';
$category = 'Engineering';
$functionName = 'DELTA';
$description = 'Tests whether two values are equal. Returns 1 if number1 = number2; returns 0 otherwise. This function is also known as the Kronecker Delta function';
$helper->titles($category, $functionName, $description);
// Create new PhpSpreadsheet object
$spreadsheet = new Spreadsheet();
$worksheet = $spreadsheet->getActiveSheet();
// Add some data
$testData = [
[4, 5],
[3, 3],
[0.5, 0],
];
$testDataCount = count($testData);
$worksheet->fromArray($testData, null, 'A1', true);
for ($row = 1; $row <= $testDataCount; ++$row) {
$worksheet->setCellValue('C' . $row, '=DELTA(A' . $row . ',B' . $row . ')');
}
$comparison = [
0 => 'The values are not equal',
1 => 'The values are equal',
];
// Test the formulae
for ($row = 1; $row <= $testDataCount; ++$row) {
$helper->log(
"(E$row): Compare values "
. $worksheet->getCell('A' . $row)->getValue()
. ' and '
. $worksheet->getCell('B' . $row)->getValue()
. ' - Result is '
. $worksheet->getCell('C' . $row)->getCalculatedValue()
. ' - '
. $comparison[$worksheet->getCell('C' . $row)->getCalculatedValue()]
);
}