wpdatatables / lib / phpoffice / phpspreadsheet / src / PhpSpreadsheet / Calculation / Database / DAverage.php

DAverage.php in wpDataTables – WordPress Data Table, Dynamic Tables & Table Charts Plugin 6.5.1.7, at lib/phpoffice/phpspreadsheet/src/PhpSpreadsheet/Calculation/Database/DAverage.php

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1	<?php
2
3	namespace PhpOffice\PhpSpreadsheet\Calculation\Database;
4
5	use PhpOffice\PhpSpreadsheet\Calculation\Information\ExcelError;
6	use PhpOffice\PhpSpreadsheet\Calculation\Statistical\Averages;
7
8	class DAverage extends DatabaseAbstract
9	{
10	/**
11	* DAVERAGE.
12	*
13	* Averages the values in a column of a list or database that match conditions you specify.
14	*
15	* Excel Function:
16	* DAVERAGE(database,field,criteria)
17	*
18	* @param mixed[] $database The range of cells that makes up the list or database.
19	* A database is a list of related data in which rows of related
20	* information are records, and columns of data are fields. The
21	* first row of the list contains labels for each column.
22	* @param int\|string $field Indicates which column is used in the function. Enter the
23	* column label enclosed between double quotation marks, such as
24	* "Age" or "Yield," or a number (without quotation marks) that
25	* represents the position of the column within the list: 1 for
26	* the first column, 2 for the second column, and so on.
27	* @param mixed[] $criteria The range of cells that contains the conditions you specify.
28	* You can use any range for the criteria argument, as long as it
29	* includes at least one column label and at least one cell below
30	* the column label in which you specify a condition for the
31	* column.
32	*
33	* @return float\|string
34	*/
35	public static function evaluate($database, $field, $criteria)
36	{
37	$field = self::fieldExtract($database, $field);
38	if ($field === null) {
39	return ExcelError::VALUE();
40	}
41
42	return Averages::average(
43	self::getFilteredColumn($database, $field, $criteria)
44	);
45	}
46	}
47