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SSAS Calculated Measure YTD using Named Set

Posted By:      Posted Date: April 10, 2011    Points: 0   Category :


I have a time dimension in my SSAS 2005 cube called [Fiscal Period Hierarchy] (Year-Quarter-Month-Day].

When the user selects multiple days, I need to show the YTD, MTD, and last YTD for those days.

I have named set in my cube called [Day] which uses {existing [Fiscal Period].[Fiscal Period Hierarchy].[Day]}

Under the script view, I created a calculated measure for YTD as follows

 AS Aggregate
( PeriodsToDate([Fiscal Period].[Fiscal Period Hierarchy],
Tail(existing [Day].[Fiscal Period].[Fiscal Period Hierarchy].[Day]).Item(0)),
[Measures].[Sales (CDN)]),
VISIBLE = 1  ;    

Could you please let me know how to change this as the cube browser shows 'The YTD function expects a member expression for the argument. A tuple expression was used.'


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