Hello everyone,
I want to calculate the standard deviation of my material consumption for a specific period.
First I have tried to create a new calculated key figure based on the "total quantity consumed" with the exception aggregation "standard deviation" and the reference characteristic "material", but this returns only a 0.000 for every material.
Afterwards I tried to combine two calculated key figures:
1. standard deviation (period)
base: total quantity consumed
exception aggregation: standard deviation
ref. characteristic: material
2. Standard deviaton of (material)
base: standard deviation (period)
exception aggregation: standard deviation
ref. characteristic: calendar year/month
The result is that the second key figure(material) returns 0.000 for every material. The first key figure returns different values that looks quite nice, but in case of a "total quantity consumed" of 1, a 0,70711 is returned. This is clearly not correct. It must be a 0 value.
Does anyone of you has any further ideas how to solve my problem?
I am using the following version of the BEx Query Designer:
BEx: BI AddOn 7.X (based on 7.30)
Support Package 7, Patch 1
Revision 734
Thanks in advance and kind regards,
Christopher