Forum Discussion

dc189's avatar
dc189
Helper II
9 years ago
Solved

Calculating average by year

Hello,   I have a simple dataset (https://www.dropbox.com/s/euehk38ihd5ki3h/Book1.xlsx?dl=0) with 3 columns - Year (column A), Sales per sq.ft. (Column B) and Average sales per sq.ft. (Column C). C...
Tips and Tricks
  • v-huizhn-msft's avatar
    v-huizhn-msft
    9 years ago

    Hi dc189,

    There is no CALCULATED function in PowerBI, it should be CALCULATE.

    Why do you relate original table to a date table, you can create a calculated column in original table and get expected result.

    Yearly avg Sales per sq.ft. = CALCULATE(AVERAGE(Table3[Sales per sq.ft]),ALLEXCEPT(Table3,Table3[Year]))


    Please see the result in the following screenshot.



    Please let me know if you have any other questions.

    Best Regards,
    Angelia

Greg_Deckler's avatar
Greg_Deckler
Community Champion
9 years ago

I would create a measure which is basically:

 

Yearly average Sales per sqfeet = AVERAGE([Sales per sqfeet])

Another way would be to have a table of years related to your fact table and create the custom column there like:

 

Yearly average sales per sqfeet = CALCULATED(AVERAGE(Table[Sales per sqfeet],RELATEDTABLE(Table))
dc189's avatar
dc189
Helper II
9 years ago

Greg_Deckler thanks for your message. Unfortunately the second formula doesn't work. Power BI gives an error saying "the syntax for CALCULATED is incorrect".

 

The table I shared with you is part of a bigger table. What I basically is to recreate the "Yearly average Sales per sq.ft." column as below:

 

Year----Sales per sq.ft.------Yearly avg Sales per sq.ft.

 

2010---60----55

2010---50----55

2011---40----35

2011---30----35

2012---20----30

2012---40----30

 

I created a new table with just one column 'Year' and with the values 2010, 2012, 2013, 2014 and 2015.

 

Now how do I relate this Year table with my original table to get the "Yearly avg Sales per sq.ft." column as shown?

 

Thanks,

dc189

  • v-huizhn-msft's avatar
    v-huizhn-msft
    Microsoft Employee
    9 years ago

    Hi dc189,

    There is no CALCULATED function in PowerBI, it should be CALCULATE.

    Why do you relate original table to a date table, you can create a calculated column in original table and get expected result.

    Yearly avg Sales per sq.ft. = CALCULATE(AVERAGE(Table3[Sales per sq.ft]),ALLEXCEPT(Table3,Table3[Year]))


    Please see the result in the following screenshot.



    Please let me know if you have any other questions.

    Best Regards,
    Angelia

    • dc189's avatar
      dc189
      Helper II
      9 years ago

      Thanks Angelia for your help! Your formula was helpful and led me to the following formula that also worked for me:

       

      Yearly Avg Sales per sq.ft. = CALCULATE(AVERAGE(Table[Sales/sq.ft.]),FILTER(Table,AND(Table[Year]=EARLIER(Table[Year]),Table[Size]<>0)))

      • v-huizhn-msft's avatar
        v-huizhn-msft
        Microsoft Employee
        9 years ago

        Hi dc189,

        I am very gald you have resolved your issue, please mark the helpful reply as answer, which will help more people.

        Best Regards,
        Angelia