有没有更好的方法来计算iccube中MDX的移动平均值？

Question

我使用以下计算成员来计算过去30天内我的访问的移动平均值;有没有更短的方法呢？

WITH 
  MEMBER [Measures].[Visits Moving Avg] AS 
      AVG(
        [TIME].[Time].Prevmember : [TIME].[Time].Prevmember.Prevmember.Prevmember....
        , [Measures].[VISITS] 
      ), SOLVE_ORDER = 0

Answer 1

您可以使用Lag MDX function函数，而不是使用prevMember.prevMember ...系列的系列：

WITH 
  MEMBER [Measures].[Visits Moving Avg] AS 
      AVG(
        [TIME].[Time].prevMember : [TIME].[Time].prevMember.lag(30)
        , [Measures].[VISITS] 
      ), SOLVE_ORDER = 0

顺便说一下，查询中看起来缺少currentMember;您当前正在计算[时间]维度的默认成员的移动平均值。使用时间维度的currentMember的查询如下：

WITH 
  MEMBER [Measures].[Visits Moving Avg] AS 
      AVG(
        [TIME].[Time].currentMemBer.prevMember
            : [TIME].[Time].currentMemBer.prevMember.lag(30)
        , [Measures].[VISITS] 
      ), SOLVE_ORDER = 0