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## Distinctcount and average per month

Hi all,

I have a table which contains unique Mac adresses for each user. The table also contains the info which device category and what device type the mac adress is using. Each device gets its own row. The table is updated every month with all active mac adresses and devices. I have also created a date table which is linked to the time stamp of the original data.

I am trying to calculate the average number of device category and device type per mac adress for each month. I have tried numerous things but I am just not a DAX expert.

E.g. at the moment it would display:

February 2024: 1 accessory as an average because only one mac adress is using it. The correct result should be 0,5 because the total of adresses in 02/2024 is 2.

1 ACCEPTED SOLUTION
Community Support

Hi @Seb93 ,
Based on the information you provided, I have created some data hopefully to solve the problem for you. You can follow the steps below:

``````Access =
IF ( 'Table'[Device_category] = "Accessory", 1 )
``````
``````Mac_Access =
VAR _1 = 'Table'[Gateway_mac]
VAR _SumMac =
CALCULATE (
SUM ( 'Table'[Access] ),
FILTER ( 'Table', 'Table'[Gateway_mac] = _1 )
)
VAR _AccessMac =
IF ( _SumMac >= 1, 1, 0 )
VAR _rank =
RANKX (
FILTER ( 'Table', 'Table'[Gateway_mac] = _1 ),
'Table'[Index],
,
ASC
)
RETURN
IF ( _AccessMac = _rank, 1, 0 )
``````

``````CountMac =
DISTINCTCOUNT ( 'Table'[Gateway_mac] )
``````
``````FinalResult =
DIVIDE ( SUM ( 'Table'[Mac_Access] ), [CountMac] )
``````

Final output:

If it does not help, please provide more details with your desired out put and pbix file without privacy information.

Best Regards,

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

2 REPLIES 2
Community Support

Hi @Seb93 ,
Based on the information you provided, I have created some data hopefully to solve the problem for you. You can follow the steps below:

``````Access =
IF ( 'Table'[Device_category] = "Accessory", 1 )
``````
``````Mac_Access =
VAR _1 = 'Table'[Gateway_mac]
VAR _SumMac =
CALCULATE (
SUM ( 'Table'[Access] ),
FILTER ( 'Table', 'Table'[Gateway_mac] = _1 )
)
VAR _AccessMac =
IF ( _SumMac >= 1, 1, 0 )
VAR _rank =
RANKX (
FILTER ( 'Table', 'Table'[Gateway_mac] = _1 ),
'Table'[Index],
,
ASC
)
RETURN
IF ( _AccessMac = _rank, 1, 0 )
``````

``````CountMac =
DISTINCTCOUNT ( 'Table'[Gateway_mac] )
``````
``````FinalResult =
DIVIDE ( SUM ( 'Table'[Mac_Access] ), [CountMac] )
``````

Final output:

If it does not help, please provide more details with your desired out put and pbix file without privacy information.

Best Regards,

If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

Super User

Please provide sample data that covers your issue or question completely, in a usable format (not as a screenshot).

Do not include sensitive information or anything not related to the issue or question.

If you are unsure how to upload data please refer to https://community.fabric.microsoft.com/t5/Community-Blog/How-to-provide-sample-data-in-the-Power-BI-...

Please show the expected outcome based on the sample data you provided.

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