Calculating a median of values

[marco.shaw]

An average are not always the best statistical value when dealing with a set of numbers.  Here's a way to determine the median of some values: 

$array=(gc ($args)|foreach{[int]$_}|sort) if($array.count%2 -eq 0)

{write-host median: (($array[($array.count/2)-1]+$array[$array.count/2])/2)}

else{write-host median: $array[($array.count/2)-0.5]}

The file containing the number to get the median from is provided as an argument when calling the script.  The input file should be of the format:

10

20

300

30

etc.

(I haven't quite figured out how to handle the line wrapping with posts here.)