public static function PHPExcel_Calculation_Statistical::AVEDEV in Loft Data Grids 6.2

Same name and namespace in other branches

1. 7.2 vendor/phpoffice/phpexcel/Classes/PHPExcel/Calculation/Statistical.php \PHPExcel_Calculation_Statistical::AVEDEV()

* AVEDEV * * Returns the average of the absolute deviations of data points from their mean. * AVEDEV is a measure of the variability in a data set. * * Excel Function: * AVEDEV(value1[,value2[, ...]]) * * @access public * @category Statistical Functions *

Parameters

mixed $arg,... Data values: * @return float

File

vendor/phpoffice/phpexcel/Classes/PHPExcel/Calculation/Statistical.php, line 700

Class

PHPExcel_Calculation_Statistical

PHPExcel_Calculation_Statistical

Code

public static function AVEDEV() {
  $aArgs = PHPExcel_Calculation_Functions::flattenArrayIndexed(func_get_args());

  // Return value
  $returnValue = null;
  $aMean = self::AVERAGE($aArgs);
  if ($aMean != PHPExcel_Calculation_Functions::DIV0()) {
    $aCount = 0;
    foreach ($aArgs as $k => $arg) {
      if (is_bool($arg) && (!PHPExcel_Calculation_Functions::isCellValue($k) || PHPExcel_Calculation_Functions::getCompatibilityMode() == PHPExcel_Calculation_Functions::COMPATIBILITY_OPENOFFICE)) {
        $arg = (int) $arg;
      }

      // Is it a numeric value?
      if (is_numeric($arg) && !is_string($arg)) {
        if (is_null($returnValue)) {
          $returnValue = abs($arg - $aMean);
        }
        else {
          $returnValue += abs($arg - $aMean);
        }
        ++$aCount;
      }
    }

    // Return
    if ($aCount == 0) {
      return PHPExcel_Calculation_Functions::DIV0();
    }
    return $returnValue / $aCount;
  }
  return PHPExcel_Calculation_Functions::NaN();
}