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<?php /** PHPExcel root directory */ if (!defined('PHPEXCEL_ROOT')) { /** * @ignore */ define('PHPEXCEL_ROOT', dirname(__FILE__) . '/../../'); require(PHPEXCEL_ROOT . 'PHPExcel/Autoloader.php'); } /** * PHPExcel_Calculation_Database * * Copyright (c) 2006 - 2015 PHPExcel * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA * * @category PHPExcel * @package PHPExcel_Calculation * @copyright Copyright (c) 2006 - 2015 PHPExcel (http://www.codeplex.com/PHPExcel) * @license http://www.gnu.org/licenses/old-licenses/lgpl-2.1.txt LGPL * @version ##VERSION##, ##DATE## */ class PHPExcel_Calculation_Database { /** * fieldExtract * * Extracts the column ID to use for the data field. * * @access private * @param mixed[] $database The range of cells that makes up the list or database. * A database is a list of related data in which rows of related * information are records, and columns of data are fields. The * first row of the list contains labels for each column. * @param mixed $field Indicates which column is used in the function. Enter the * column label enclosed between double quotation marks, such as * "Age" or "Yield," or a number (without quotation marks) that * represents the position of the column within the list: 1 for * the first column, 2 for the second column, and so on. * @return string|NULL * */ private static function fieldExtract($database, $field) { $field = strtoupper(PHPExcel_Calculation_Functions::flattenSingleValue($field)); $fieldNames = array_map('strtoupper', array_shift($database)); if (is_numeric($field)) { $keys = array_keys($fieldNames); return $keys[$field-1]; } $key = array_search($field, $fieldNames); return ($key) ? $key : null; } /** * filter * * Parses the selection criteria, extracts the database rows that match those criteria, and * returns that subset of rows. * * @access private * @param mixed[] $database The range of cells that makes up the list or database. * A database is a list of related data in which rows of related * information are records, and columns of data are fields. The * first row of the list contains labels for each column. * @param mixed[] $criteria The range of cells that contains the conditions you specify. * You can use any range for the criteria argument, as long as it * includes at least one column label and at least one cell below * the column label in which you specify a condition for the * column. * @return array of mixed * */ private static function filter($database, $criteria) { $fieldNames = array_shift($database); $criteriaNames = array_shift($criteria); // Convert the criteria into a set of AND/OR conditions with [:placeholders] $testConditions = $testValues = array(); $testConditionsCount = 0; foreach ($criteriaNames as $key => $criteriaName) { $testCondition = array(); $testConditionCount = 0; foreach ($criteria as $row => $criterion) { if ($criterion[$key] > '') { $testCondition[] = '[:'.$criteriaName.']'.PHPExcel_Calculation_Functions::ifCondition($criterion[$key]); $testConditionCount++; } } if ($testConditionCount > 1) { $testConditions[] = 'OR(' . implode(',', $testCondition) . ')'; $testConditionsCount++; } elseif ($testConditionCount == 1) { $testConditions[] = $testCondition[0]; $testConditionsCount++; } } if ($testConditionsCount > 1) { $testConditionSet = 'AND(' . implode(',', $testConditions) . ')'; } elseif ($testConditionsCount == 1) { $testConditionSet = $testConditions[0]; } // Loop through each row of the database foreach ($database as $dataRow => $dataValues) { // Substitute actual values from the database row for our [:placeholders] $testConditionList = $testConditionSet; foreach ($criteriaNames as $key => $criteriaName) { $k = array_search($criteriaName, $fieldNames); if (isset($dataValues[$k])) { $dataValue = $dataValues[$k]; $dataValue = (is_string($dataValue)) ? PHPExcel_Calculation::wrapResult(strtoupper($dataValue)) : $dataValue; $testConditionList = str_replace('[:' . $criteriaName . ']', $dataValue, $testConditionList); } } // evaluate the criteria against the row data $result = PHPExcel_Calculation::getInstance()->_calculateFormulaValue('='.$testConditionList); // If the row failed to meet the criteria, remove it from the database if (!$result) { unset($database[$dataRow]); } } return $database; } private static function getFilteredColumn($database, $field, $criteria) { // reduce the database to a set of rows that match all the criteria $database = self::filter($database, $criteria); // extract an array of values for the requested column $colData = array(); foreach ($database as $row) { $colData[] = $row[$field]; } return $colData; } /** * DAVERAGE * * Averages the values in a column of a list or database that match conditions you specify. * * Excel Function: * DAVERAGE(database,field,criteria) * * @access public * @category Database Functions * @param mixed[] $database The range of cells that makes up the list or database. * A database is a list of related data in which rows of related * information are records, and columns of data are fields. The * first row of the list contains labels for each column. * @param string|integer $field Indicates which column is used in the function. Enter the * column label enclosed between double quotation marks, such as * "Age" or "Yield," or a number (without quotation marks) that * represents the position of the column within the list: 1 for * the first column, 2 for the second column, and so on. * @param mixed[] $criteria The range of cells that contains the conditions you specify. * You can use any range for the criteria argument, as long as it * includes at least one column label and at least one cell below * the column label in which you specify a condition for the * column. * @return float * */ public static function DAVERAGE($database, $field, $criteria) { $field = self::fieldExtract($database, $field); if (is_null($field)) { return null; } // Return return PHPExcel_Calculation_Statistical::AVERAGE( self::getFilteredColumn($database, $field, $criteria) ); } /** * DCOUNT * * Counts the cells that contain numbers in a column of a list or database that match conditions * that you specify. * * Excel Function: * DCOUNT(database,[field],criteria) * * Excel Function: * DAVERAGE(database,field,criteria) * * @access public * @category Database Functions * @param mixed[] $database The range of cells that makes up the list or database. * A database is a list of related data in which rows of related * information are records, and columns of data are fields. The * first row of the list contains labels for each column. * @param string|integer $field Indicates which column is used in the function. Enter the * column label enclosed between double quotation marks, such as * "Age" or "Yield," or a number (without quotation marks) that * represents the position of the column within the list: 1 for * the first column, 2 for the second column, and so on. * @param mixed[] $criteria The range of cells that contains the conditions you specify. * You can use any range for the criteria argument, as long as it * includes at least one column label and at least one cell below * the column label in which you specify a condition for the * column. * @return integer * * @TODO The field argument is optional. If field is omitted, DCOUNT counts all records in the * database that match the criteria. * */ public static function DCOUNT($database, $field, $criteria) { $field = self::fieldExtract($database, $field); if (is_null($field)) { return null; } // Return return PHPExcel_Calculation_Statistical::COUNT( self::getFilteredColumn($database, $field, $criteria) ); } /** * DCOUNTA * * Counts the nonblank cells in a column of a list or database that match conditions that you specify. * * Excel Function: * DCOUNTA(database,[field],criteria) * * @access public * @category Database Functions * @param mixed[] $database The range of cells that makes up the list or database. * A database is a list of related data in which rows of related * information are records, and columns of data are fields. The * first row of the list contains labels for each column. * @param string|integer $field Indicates which column is used in the function. Enter the * column label enclosed between double quotation marks, such as * "Age" or "Yield," or a number (without quotation marks) that * represents the position of the column within the list: 1 for * the first column, 2 for the second column, and so on. * @param mixed[] $criteria The range of cells that contains the conditions you specify. * You can use any range for the criteria argument, as long as it * includes at least one column label and at least one cell below * the column label in which you specify a condition for the * column. * @return integer * * @TODO The field argument is optional. If field is omitted, DCOUNTA counts all records in the * database that match the criteria. * */ public static function DCOUNTA($database, $field, $criteria) { $field = self::fieldExtract($database, $field); if (is_null($field)) { return null; } // reduce the database to a set of rows that match all the criteria $database = self::filter($database, $criteria); // extract an array of values for the requested column $colData = array(); foreach ($database as $row) { $colData[] = $row[$field]; } // Return return PHPExcel_Calculation_Statistical::COUNTA( self::getFilteredColumn($database, $field, $criteria) ); } /** * DGET * * Extracts a single value from a column of a list or database that matches conditions that you * specify. * * Excel Function: * DGET(database,field,criteria) * * @access public * @category Database Functions * @param mixed[] $database The range of cells that makes up the list or database. * A database is a list of related data in which rows of related * information are records, and columns of data are fields. The * first row of the list contains labels for each column. * @param string|integer $field Indicates which column is used in the function. Enter the * column label enclosed between double quotation marks, such as * "Age" or "Yield," or a number (without quotation marks) that * represents the position of the column within the list: 1 for * the first column, 2 for the second column, and so on. * @param mixed[] $criteria The range of cells that contains the conditions you specify. * You can use any range for the criteria argument, as long as it * includes at least one column label and at least one cell below * the column label in which you specify a condition for the * column. * @return mixed * */ public static function DGET($database, $field, $criteria) { $field = self::fieldExtract($database, $field); if (is_null($field)) { return null; } // Return $colData = self::getFilteredColumn($database, $field, $criteria); if (count($colData) > 1) { return PHPExcel_Calculation_Functions::NaN(); } return $colData[0]; } /** * DMAX * * Returns the largest number in a column of a list or database that matches conditions you that * specify. * * Excel Function: * DMAX(database,field,criteria) * * @access public * @category Database Functions * @param mixed[] $database The range of cells that makes up the list or database. * A database is a list of related data in which rows of related * information are records, and columns of data are fields. The * first row of the list contains labels for each column. * @param string|integer $field Indicates which column is used in the function. Enter the * column label enclosed between double quotation marks, such as * "Age" or "Yield," or a number (without quotation marks) that * represents the position of the column within the list: 1 for * the first column, 2 for the second column, and so on. * @param mixed[] $criteria The range of cells that contains the conditions you specify. * You can use any range for the criteria argument, as long as it * includes at least one column label and at least one cell below * the column label in which you specify a condition for the * column. * @return float * */ public static function DMAX($database, $field, $criteria) { $field = self::fieldExtract($database, $field); if (is_null($field)) { return null; } // Return return PHPExcel_Calculation_Statistical::MAX( self::getFilteredColumn($database, $field, $criteria) ); } /** * DMIN * * Returns the smallest number in a column of a list or database that matches conditions you that * specify. * * Excel Function: * DMIN(database,field,criteria) * * @access public * @category Database Functions * @param mixed[] $database The range of cells that makes up the list or database. * A database is a list of related data in which rows of related * information are records, and columns of data are fields. The * first row of the list contains labels for each column. * @param string|integer $field Indicates which column is used in the function. Enter the * column label enclosed between double quotation marks, such as * "Age" or "Yield," or a number (without quotation marks) that * represents the position of the column within the list: 1 for * the first column, 2 for the second column, and so on. * @param mixed[] $criteria The range of cells that contains the conditions you specify. * You can use any range for the criteria argument, as long as it * includes at least one column label and at least one cell below * the column label in which you specify a condition for the * column. * @return float * */ public static function DMIN($database, $field, $criteria) { $field = self::fieldExtract($database, $field); if (is_null($field)) { return null; } // Return return PHPExcel_Calculation_Statistical::MIN( self::getFilteredColumn($database, $field, $criteria) ); } /** * DPRODUCT * * Multiplies the values in a column of a list or database that match conditions that you specify. * * Excel Function: * DPRODUCT(database,field,criteria) * * @access public * @category Database Functions * @param mixed[] $database The range of cells that makes up the list or database. * A database is a list of related data in which rows of related * information are records, and columns of data are fields. The * first row of the list contains labels for each column. * @param string|integer $field Indicates which column is used in the function. Enter the * column label enclosed between double quotation marks, such as * "Age" or "Yield," or a number (without quotation marks) that * represents the position of the column within the list: 1 for * the first column, 2 for the second column, and so on. * @param mixed[] $criteria The range of cells that contains the conditions you specify. * You can use any range for the criteria argument, as long as it * includes at least one column label and at least one cell below * the column label in which you specify a condition for the * column. * @return float * */ public static function DPRODUCT($database, $field, $criteria) { $field = self::fieldExtract($database, $field); if (is_null($field)) { return null; } // Return return PHPExcel_Calculation_MathTrig::PRODUCT( self::getFilteredColumn($database, $field, $criteria) ); } /** * DSTDEV * * Estimates the standard deviation of a population based on a sample by using the numbers in a * column of a list or database that match conditions that you specify. * * Excel Function: * DSTDEV(database,field,criteria) * * @access public * @category Database Functions * @param mixed[] $database The range of cells that makes up the list or database. * A database is a list of related data in which rows of related * information are records, and columns of data are fields. The * first row of the list contains labels for each column. * @param string|integer $field Indicates which column is used in the function. Enter the * column label enclosed between double quotation marks, such as * "Age" or "Yield," or a number (without quotation marks) that * represents the position of the column within the list: 1 for * the first column, 2 for the second column, and so on. * @param mixed[] $criteria The range of cells that contains the conditions you specify. * You can use any range for the criteria argument, as long as it * includes at least one column label and at least one cell below * the column label in which you specify a condition for the * column. * @return float * */ public static function DSTDEV($database, $field, $criteria) { $field = self::fieldExtract($database, $field); if (is_null($field)) { return null; } // Return return PHPExcel_Calculation_Statistical::STDEV( self::getFilteredColumn($database, $field, $criteria) ); } /** * DSTDEVP * * Calculates the standard deviation of a population based on the entire population by using the * numbers in a column of a list or database that match conditions that you specify. * * Excel Function: * DSTDEVP(database,field,criteria) * * @access public * @category Database Functions * @param mixed[] $database The range of cells that makes up the list or database. * A database is a list of related data in which rows of related * information are records, and columns of data are fields. The * first row of the list contains labels for each column. * @param string|integer $field Indicates which column is used in the function. Enter the * column label enclosed between double quotation marks, such as * "Age" or "Yield," or a number (without quotation marks) that * represents the position of the column within the list: 1 for * the first column, 2 for the second column, and so on. * @param mixed[] $criteria The range of cells that contains the conditions you specify. * You can use any range for the criteria argument, as long as it * includes at least one column label and at least one cell below * the column label in which you specify a condition for the * column. * @return float * */ public static function DSTDEVP($database, $field, $criteria) { $field = self::fieldExtract($database, $field); if (is_null($field)) { return null; } // Return return PHPExcel_Calculation_Statistical::STDEVP( self::getFilteredColumn($database, $field, $criteria) ); } /** * DSUM * * Adds the numbers in a column of a list or database that match conditions that you specify. * * Excel Function: * DSUM(database,field,criteria) * * @access public * @category Database Functions * @param mixed[] $database The range of cells that makes up the list or database. * A database is a list of related data in which rows of related * information are records, and columns of data are fields. The * first row of the list contains labels for each column. * @param string|integer $field Indicates which column is used in the function. Enter the * column label enclosed between double quotation marks, such as * "Age" or "Yield," or a number (without quotation marks) that * represents the position of the column within the list: 1 for * the first column, 2 for the second column, and so on. * @param mixed[] $criteria The range of cells that contains the conditions you specify. * You can use any range for the criteria argument, as long as it * includes at least one column label and at least one cell below * the column label in which you specify a condition for the * column. * @return float * */ public static function DSUM($database, $field, $criteria) { $field = self::fieldExtract($database, $field); if (is_null($field)) { return null; } // Return return PHPExcel_Calculation_MathTrig::SUM( self::getFilteredColumn($database, $field, $criteria) ); } /** * DVAR * * Estimates the variance of a population based on a sample by using the numbers in a column * of a list or database that match conditions that you specify. * * Excel Function: * DVAR(database,field,criteria) * * @access public * @category Database Functions * @param mixed[] $database The range of cells that makes up the list or database. * A database is a list of related data in which rows of related * information are records, and columns of data are fields. The * first row of the list contains labels for each column. * @param string|integer $field Indicates which column is used in the function. Enter the * column label enclosed between double quotation marks, such as * "Age" or "Yield," or a number (without quotation marks) that * represents the position of the column within the list: 1 for * the first column, 2 for the second column, and so on. * @param mixed[] $criteria The range of cells that contains the conditions you specify. * You can use any range for the criteria argument, as long as it * includes at least one column label and at least one cell below * the column label in which you specify a condition for the * column. * @return float * */ public static function DVAR($database, $field, $criteria) { $field = self::fieldExtract($database, $field); if (is_null($field)) { return null; } // Return return PHPExcel_Calculation_Statistical::VARFunc( self::getFilteredColumn($database, $field, $criteria) ); } /** * DVARP * * Calculates the variance of a population based on the entire population by using the numbers * in a column of a list or database that match conditions that you specify. * * Excel Function: * DVARP(database,field,criteria) * * @access public * @category Database Functions * @param mixed[] $database The range of cells that makes up the list or database. * A database is a list of related data in which rows of related * information are records, and columns of data are fields. The * first row of the list contains labels for each column. * @param string|integer $field Indicates which column is used in the function. Enter the * column label enclosed between double quotation marks, such as * "Age" or "Yield," or a number (without quotation marks) that * represents the position of the column within the list: 1 for * the first column, 2 for the second column, and so on. * @param mixed[] $criteria The range of cells that contains the conditions you specify. * You can use any range for the criteria argument, as long as it * includes at least one column label and at least one cell below * the column label in which you specify a condition for the * column. * @return float * */ public static function DVARP($database, $field, $criteria) { $field = self::fieldExtract($database, $field); if (is_null($field)) { return null; } // Return return PHPExcel_Calculation_Statistical::VARP( self::getFilteredColumn($database, $field, $criteria) ); } }
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