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Responsive Resident

## Weighted Average

Hello - I am needing help with a weighted average calculate across multiple combination of categories.   This is a first attempt, utilizing PBI quickmeasures - unfortunately only allows one category

``````Moisture WtAvg per Field =
VAR __CATEGORY_VALUES = VALUES('Table'[Field])
RETURN
DIVIDE(
SUMX(
KEEPFILTERS(__CATEGORY_VALUES),
CALCULATE([SumMoisture] * [WetBushels])
),
SUMX(KEEPFILTERS(__CATEGORY_VALUES), CALCULATE([WetBushels]))
)``````

I am really needing a single? measure that can handle most any combination of categories.

The three most needed are identified in the attached file - as visuals.

The blue circled should be 14.0% and Red 20.87%

As Always - thank you!

1 ACCEPTED SOLUTION
Super User

You need to iterate at the lowest level of granularity for it to work properly at all levels.

In this case, you can iterate at the table row level to keep things simple.

``````Avg Moisture =
DIVIDE (
SUMX ( 'Table', [SumMoisture] * [WetBushels] ),
SUMX ( 'Table', [WetBushels] )
)``````

Note that this gives 14% for both numbers circled. The value 20.87% makes no sense when all of the moisture measurements are below 16%.

4 REPLIES 4
Super User

Hi,

How did you calculate the 20.87%?

Regards,
Ashish Mathur
http://www.ashishmathur.com
Responsive Resident

Sorry, I was working off a spreadsheet, and had a transposed number.   Appreciate your time - solution has been found.

Super User

You need to iterate at the lowest level of granularity for it to work properly at all levels.

In this case, you can iterate at the table row level to keep things simple.

``````Avg Moisture =
DIVIDE (
SUMX ( 'Table', [SumMoisture] * [WetBushels] ),
SUMX ( 'Table', [WetBushels] )
)``````

Note that this gives 14% for both numbers circled. The value 20.87% makes no sense when all of the moisture measurements are below 16%.

Responsive Resident

Thank you very much.   After all my google searches, your solution is so elegant.   Apologize on the 20% number, I was working off a spreadsheet, and had a wrong number typed in.

Thank you!

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