DVAR.php
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<?php
error_reporting(E_ALL);
set_time_limit(0);
date_default_timezone_set('Europe/London');
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>PHPExcel Calculation Examples</title>
</head>
<body>
<h1>DVAR</h1>
<h2>Estimates variance based on a sample from selected database entries.</h2>
<?php
/** Include path **/
set_include_path(get_include_path() . PATH_SEPARATOR . '../../../../Classes/');
/** Include PHPExcel */
include 'PHPExcel.php';
// Create new PHPExcel object
$objPHPExcel = new PHPExcel();
$worksheet = $objPHPExcel->getActiveSheet();
// Add some data
$database = array( array( 'Tree', 'Height', 'Age', 'Yield', 'Profit' ),
array( 'Apple', 18, 20, 14, 105.00 ),
array( 'Pear', 12, 12, 10, 96.00 ),
array( 'Cherry', 13, 14, 9, 105.00 ),
array( 'Apple', 14, 15, 10, 75.00 ),
array( 'Pear', 9, 8, 8, 76.80 ),
array( 'Apple', 8, 9, 6, 45.00 ),
);
$criteria = array( array( 'Tree', 'Height', 'Age', 'Yield', 'Profit', 'Height' ),
array( '="=Apple"', '>10', NULL, NULL, NULL, '<16' ),
array( '="=Pear"', NULL, NULL, NULL, NULL, NULL )
);
$worksheet->fromArray( $criteria, NULL, 'A1' );
$worksheet->fromArray( $database, NULL, 'A4' );
$worksheet->setCellValue('A12', 'The estimated variance in the yield of Apple and Pear trees');
$worksheet->setCellValue('B12', '=DVAR(A4:E10,"Yield",A1:A3)');
$worksheet->setCellValue('A13', 'The estimated variance in height of Apple and Pear trees');
$worksheet->setCellValue('B13', '=DVAR(A4:E10,2,A1:A3)');
echo '<hr />';
echo '<h4>Database</h4>';
$databaseData = $worksheet->rangeToArray('A4:E10',null,true,true,true);
var_dump($databaseData);
echo '<hr />';
// Test the formulae
echo '<h4>Criteria</h4>';
$criteriaData = $worksheet->rangeToArray('A1:A3',null,true,true,true);
var_dump($criteriaData);
echo $worksheet->getCell("A12")->getValue() .'<br />';
echo 'DVAR() Result is ' . $worksheet->getCell("B12")->getCalculatedValue() .'<br /><br />';
echo '<h4>Criteria</h4>';
$criteriaData = $worksheet->rangeToArray('A1:A3',null,true,true,true);
var_dump($criteriaData);
echo $worksheet->getCell("A13")->getValue() .'<br />';
echo 'DVAR() Result is ' . $worksheet->getCell("B13")->getCalculatedValue();
?>
<body>
</html>