YTD Average in DAX | 易学教程

问题

Need to calculate YTD Average and LYTD Average in DAX , Our Fiscal year starts from Apr. So if my current day is 5th of the June 2017 then lytd_AVG would be from Apr to June would be (MTD Aprn 17) + (MTD May 17) + (MTD June 17)/3

and LYTD_AVG would be (MTD Apr 16) + (MTD May 16) + (MTD June 16)/3

Assuming my current date is 06-03-2017, the YTD avg would be 60

回答1:

Assuming your data is given monthly (since you have no sample data), for YTD you should be able to use something that looks like this:

YTD Avg = CALCULATE(AVERAGE(Table[Value]), DATESYTD(Table[Date], "03-31"))

The last argument specifies the year-end date (Reference).

You can use the SAMEPERIOODLASTYEAR function for LYTD:

LYTD Avg = CALCULATE(AVERAGE(Table[Value]),
               SAMEPERIODLASTYEAR(DATESYTD(Table[Date], "03-31")))

Edit: Since your data is daily, we need to do a bit more work.

First, add month and year calculated columns to your table:

Month = MONTH(Table[Date])
FiscalYear = YEAR(MINX(DATESYTD(Table[Date], "03-31"), [Date]))

Then you will group by months in your measures:

YTD = AVERAGEX
          SUMMARIZE(Table1,
              Table1[Month],
              "MTDAmount", SUM(Table1[Amount])),
          [MTDAmount])

LYTD = AVERAGEX(
           SUMMARIZE(
               FILTER(ALL(Table1),
                   Table1[Month] IN VALUES(Table1[Month]) &&
                   Table1[FiscalYear] = MAX(Table1[FiscalYear]) - 1),
               Table1[Month],
               "MTDAmount", SUM(Table1[Amount])),
           [MTDAmount])

You should then be able to build tables like this:

来源：https://stackoverflow.com/questions/49430400/ytd-average-in-dax

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