Tag Archives: daily average

MDX, SSAS

Daily Average Orders Calculation at Any Level of Date Hierarchy

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Today I was helping a fellow BIDN.com user come up with a calculation to figure out the average numbers of orders on day at any level of a date hierarchy. So I figured I’d post the calculation because 1) maybe it will be helpful to you and 2) I’m going to forget this calculation so I’ll at least be able to use this post as a reference.

WITH 
    //Gets a Summation of the Orders in the Fiscal period
    MEMBER [Measures].[Sum] AS 
    
        SUM([Date].[Fiscal].CHILDREN,[Measures].[Internet Order Count])
    //Counts the days in the Fiscal period
    MEMBER [Measures].[Count] AS 
    
        COUNT({DESCENDANTS([Date].[Fiscal].CURRENTMEMBER, [Date].[Fiscal].[Date])})
    //Divides the sum of orders by the count of days to calculate the average daily 
    //orders in that fiscal period
    MEMBER [Measures].[AvgDailyIntOrdCount] AS  
    
        SUM([Date].[Fiscal].CHILDREN,[Measures].[Internet Order Count])/
        COUNT({DESCENDANTS([Date].[Fiscal].CURRENTMEMBER, [Date].[Fiscal].[Date])})
        
SELECT     {[Measures].[Sum],[Measures].[Count],[Measures].[AvgDailyIntOrdCount]} on 0,    
{[Date].[Fiscal].Members} ON ROWS 
FROM
      [Adventure Works]

In the calculation, I use the SUM function to get an aggregations of the Internet Order Count for any level of the Fiscal Date hierarchy. I also used the Count function with the Descendants function to get a count of days beneath a member of any level of the Fiscal Date hierarchy.

It seems to work pretty good, but if you have an alternative way to calculate this, please post it in the comments section!