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Actionscript 3.0 - LEVEL
INTERMEDIATE
AS3 Calculate Median Value
Last edited 14TH DEC, 2010
Pass in an array of numeric values in any order and it will return you the median value which is the middle value for an odd length of values, or the mid-point between the two middle numbers for an even length of values
public static function calculateMedian(_values:Array) : Number { var median:Number; var middleIndex:int; _values.sort(Array.NUMERIC); if (_values.length % 2 == 0) { // even length of values list middleIndex = Math.round((_values.length / 2)); median = _values[middleIndex-1] + ((_values[middleIndex] - _values[middleIndex-1])/2); } else { // odd length of values list - get middle value - thats the median... middleIndex = Math.round((_values.length / 2)); median = _values[middleIndex-1]; } return median; }
