Group by calculation

[Julien74]

Hi, 

I have a table like that (with text Id)

and I want to obtain a group by like that which sum is distinct number of Id by departement 

Thank you

Julien 

[Shaurya]

Hi @Julien74,

Use the following DAX Code:

New Table = SUMMARIZE('Table', 'Table'[Service], "Month",MONTH('Table'[Date], "Count",DISTINCTCOUNT('Table'[ID]))

Works for you? Mark this post as a solution if it does!
Consider taking a look at my blog: How to Export Telemetry Data from Azure IoT Central into Power BI

[Julien74]

Hi @Shaurya 

I'm sorry but i can't find 'Table'[Date] (but date is in my table)  in your formula and the month function accept only one argument. 

[Shaurya]

Hi @Julien74,

'Table'[Date] is simply the name of the table and date column in your model. About the month paramter, I missed a bracket.

New Table = SUMMARIZE('Table', 'Table'[Service],
"Month", MONTH('Table'[Date]),
"Count", DISTINCTCOUNT('Table'[ID]))

Works for you? Mark this post as a solution if it does!
Consider taking a look at my blog: Forecast Period - Previous Forecasts

[Julien74]

Hi thanks for your answer. I understand well it's the column on my model. But it says thats is impossible to determine a unique value for my column "date" 

[Anonymous · Accepted solution]

Hi @Julien74 ,

Please try:

New Table =
SUMMARIZE (
    'Table',
    'Table'[Serivice],
    'Table'[Date],
    "Month", FORMAT ( 'Table'[Date], "mmmm" ),
    "Count", DISTINCTCOUNT ( 'Table'[ID] )
)

Since measure only return scalar, you must introduce entity columns to group data. Similarly, if you want a measure, you need to create a calculated column in the original table.

Month = FORMAT('Table'[Date],"mmmm")

Then new a meaure:

Count = DISTINCTCOUNT('Table'[ID])

Then use [Count],'Table'[Month] and 'Table'[Serivice] in a table visual.

Best Regards,
Gao
Community Support Team

If there is any post helps, then please consider Accept it as the solution  to help the other members find it more quickly. If I misunderstand your needs or you still have problems on it, please feel free to let us know. Thanks a lot!

How to get your questions answered quickly -- How to provide sample data