How about a cursor instead of an array....
The Std Dev calculation is going to be a killer anyway..

>I thought of that but this routine is called potentially hundreds of times in a single method call and the i/o would kill the app.
>
>>Why don't you take the contents of the array and jam it into a cursor?
>>
>>>Hi All.
>>>
>>>I'm in a bit of a problem here. I need to compute the standard deviation on an array of values. I know it's easy to do it on table data: CALCULATE STD(numfield). But what is the actual textbook formula? Anyone got a mathematics textbook handy or a darn good memory?