I am trying to do a simple STDEV formula: StdDev({WO_BOM.QTY_ISSUED}, {WO_OPERATION.CLOSE_DATE},"weekly") but i am getting a turn of 0.
Since the there is no change in the amount of parts issued from one detail to the next. I grouped by week to give me the influx of parts used per week. how do i make the STDEV just count the week totals and not the details?