Weighted avg and stdev calculations with SSAS

Question

Hi, I need to write a calculation within BIDS calculations tab, that works for every query within my cube for a specific measure. I'd already tried several recommended approaches with no luck. Thanks!

Answer 1

I wanted to dynamically select a measure.  I created a dynamic Query that pulls back the expected stnd deviation and mean using this:
With
member
[Mean] as
iif(IsEmpty(Axis(0).Item(0)),
NULL,
Avg(Axis(1).Item(0).Item(0).Dimension.Children,
Axis(0).Item(0))),
format_string = 'percent'
member
[Standard Dev] as
iif(IsEmpty(Axis(0).Item(0)),
NULL,
StdDev(Axis(1).Item(0).Item(0).Dimension.Children,
Axis(0).Item(0)))
select
{[Measures].[Number 1],[Mean],[Standard Dev]}
on 0,
non empty([Date].[Calendar].[Month].&[2009]&[3]
,[Names].[Name].&[Name 1])
on 1
from
[Cube]
Where
([Organization].[Organization Name].&[Name 1]
I then take the members (from the dynamic query) and add them as 2 calculations (Mean and Standad Dev) in the cube.
I run this query after i deploy and process the cube:
select
{[Measures].[Number 1],[Mean],[Standard Dev]}
on 0,
non
empty([Date].[Calendar].[Month].&[2009]&[3]
,[Names].[Name].&[Name 1])
on 1
from
[Cube]
Where
([Organization].[OrgName].&[[OrgName 1])
I come up  with the same results.  All is good, until I try to use report builder to add these calcuated measures.  Is there something special about the way report builder or cube browser (from SSMS) creates
the MDX behind the scenes that would prevent this dynamic query from working properly?  I am using the the OrgName in the filter and add the same measure, month, Name to the cube query designer.
Any suggestions would be helpful. 
Jake Kremer - Senior Business Intelligence Consultant - Project Leadership Associates