SSAS计算全年最后YTD总量的度量

Question

我有一个基本的Adventureworks Date Dimension，名为Dates，带有一个名为-CalendarYear的层次结构。我需要创建会给我一个LYFinal聚合和一个LYTD聚合的成员。我已经尝试了总和（YTD与并行期间没有可用。实际上是Sum（YTD和sum）（产生相同的结果，包含整个前一年的聚合。这是代码。

CREATE MEMBER CURRENTCUBE.[Measures].[LYTD_Amount]
 AS SUM(YTD(ParallelPeriod([Dates].[-CalendarYear].[Year]
    , 1
    , [Dates].[-CalendarYear].CurrentMember))
    , [Measures].[Actual Detailed Amount] 
), 
FORMAT_STRING = "$#,##0;-$#,##0", 
VISIBLE = 1 ,  ASSOCIATED_MEASURE_GROUP = 

CREATE MEMBER CURRENTCUBE.[Measures].[Amount LY Final]
 AS SUM(ParallelPeriod([Dates].[-CalendarYear].[Year]
    , 1
    , [Dates].[-CalendarYear].CurrentMember)
    , [Measures].[Actual Detailed Amount] 
), 
FORMAT_STRING = "$#,##0;-$#,##0", 
VISIBLE = 1 ,  ASSOCIATED_MEASURE_GROUP = 

我的日期维度是时间类型。年份和日期设置为年和日。

如果我从查询窗口写一些MDX，YTD功能仍然不限于一年前的LYTD值。这是我的MDX代码（我不打算使用MDX查询数据。用户只需过滤2016年数据，抓住这个衡量标准，它应该提供前一年和之前年初的2015年值）

WITH MEMBER [Measures].[Current YTD] AS
SUM(YTD([Dates].[-CalendarYear].CurrentMember), [Measures].[Actual Detailed Amount])
MEMBER [Measures].[Last YTD] AS 
SUM(YTD(ParallelPeriod([Dates].[-CalendarYear].[Year]
, 1
, [Dates].[-CalendarYear].CurrentMember))
, [Measures].[Actual Detailed Amount] 
)
SELECT {[Measures].[Current YTD]
, [Measures].[Last YTD]
} ON 0
FROM [Event_Lawson_Dev]
WHERE ([Dates].[-CalendarYear].[Date].&[2016-06-15T00:00:00])
;

--Hardcoded dates to force the YTD
WITH MEMBER [Measures].[Current YTD] AS
SUM({[Dates].[-CalendarYear].[Date].&[2016-01-01T00:00:00]:[Date].[Calendar].[Date].&[2016-06-15T00:00:00]}
, [Measures].[Actual Detailed Amount])
MEMBER [Measures].[Last YTD] AS 
SUM( {[Dates].[-CalendarYear].[Date].&[2015-01-01T00:00:00]:[Date].[Calendar].[Date].&[2015-06-15T00:00:00]} 
, [Measures].[Actual Detailed Amount] 
)
SELECT {[Measures].[Current YTD]
, [Measures].[Last YTD]
} ON 0
FROM [Event_Lawson_Dev]
;