topic Re: Countax with selectedvalue expresion returns Zero in DAX Commands and Tips

Countax with selectedvalue expresion returns Zero

Anonymous — Wed, 20 Jan 2021 11:20:50 GMT

I started with this thread wondering how to solve the issue. From there I got to a solution with a DAX meassure but it's not working for the totals.

I got this table:

Actor	Time Start	Time End	Date	Total hours	Content type	ID
A	10:00	12:00	01/01/2021	2.00	A	A01/01/202110:0012:00
B	08:00	12:00	02/01/2021	4.00	B	B02/01/20218:0012:00
A	10:00	12:00	03/01/2021	2.00	A	A03/01/202110:0012:00
A	12:00	14:00	03/01/2021	2.00	AB	AB03/01/202112:0014:00
A	10:00	12:00	04/01/2021	2.00	AB	AB04/01/202110:0012:00
B	10:00	12:00	04/01/2021	2.00	AB	AB04/01/202110:0012:00
A	09:00	13:00	05/01/2021	4.00	AB	AB05/01/20219:0013:00
B	16:00	18:00	05/01/2021	2.00	AB	AB05/01/202116:0018:00

It records whos is recording in a studio (Actor) and what is recording (content type).

They can record content only for them (A or B) or content for both (AB).

The content for both (AB) can be recorded separately or together (same time and date)

The problem is when they record together, the recording session adds the double of time. i.e. the session of the 04/01/2021 A and B are recording together in a 2 hours session length, but the sum will acount it as 4 hours of recording.

My approach is concatenat the ID column = [Content type] & [Date] & [time start] & [time end]

This ID will be repeated by the people recording togehter (same time and date), therefore I wrote this Measure:

both adjst = SUMX ( Data, Data[Total hours] / COUNTAX ( Data, SELECTEDVALUE ( Data[ID] ) ) )

It works as expected

Just the date 04/01/2021 is summirezed and divided by the count of IDs... the problem is that I need the total as well.

I understand the the total returns infinity because theres no selectedvalue and returns Zero, so the division is infinity, but I don't know other way to do this. It could work as well in a DAX added column but thhis way selectedvalue won't work.

I tried using and IF:

both adjst 2 = IF ( ISBLANK ( SELECTEDVALUE ( Data[ID] ) ), SUMX ( Data, Data[Total hours] / COUNTA ( Data[ID] ) ), SUMX ( Data, Data[Total hours] / COUNTAX ( Data, SELECTEDVALUE ( Data[ID] ) ) ) )

but this doesn't work for the total

I tried CALCULATE and the expresion above with an filtering thinking it would be executed row by row...but the result is the same.

I'm thinking a dax column would do the work but no clue how to do it. A new column with the fixed values for Total hours, meaning Total hours divided by the count of The ID appear in the table.

Any idea will be welcome 🙂

thanks

Pepe

Re: Countax with selectedvalue expresion returns Zero

Anonymous — Wed, 20 Jan 2021 12:50:51 GMT

Hello Anonymous
As you've mentioned the A and B are recording so the hours will the sum (4 hours), but in the count of ID = 2, I can see only 2 hours.
Are you looking for something like the below image?

Re: Countax with selectedvalue expresion returns Zero

Anonymous — Wed, 20 Jan 2021 14:23:04 GMT

Hi Anonymous

No, the total is not 20, it should be 18. Because the hours at 4/01/21 are 2 not 4.

My measure is working at a row level, but not for the total that returns infinity, thats my problem.

Thanks!!

Re: Countax with selectedvalue expresion returns Zero

Anonymous — Thu, 21 Jan 2021 07:50:01 GMT

Hello Anonymous
Instead of measure try a calculated column and plot into the table.

Re: Countax with selectedvalue expresion returns Zero

wdx223_Daniel — Thu, 21 Jan 2021 08:16:03 GMT

Re: Countax with selectedvalue expresion returns Zero

Anonymous — Thu, 21 Jan 2021 08:29:15 GMT

Yep I think that a good one, but I don't know how to do that calculation in a column. 😅

Re: Countax with selectedvalue expresion returns Zero

Anonymous — Thu, 21 Jan 2021 08:30:30 GMT

Ohhh that was something I though about but didn't try how to do it. I'm gonna implement that in my report but I think that's going to work 🙂

Thanks!!

Re: Countax with selectedvalue expresion returns Zero

Anonymous — Thu, 21 Jan 2021 10:37:23 GMT

Hello Anonymous
Create a calculated column using the below calculation.

Hour =

VAR TotalID =

CALCULATE ( COUNT ( Recordings[ID] ), ALLEXCEPT ( Recordings, Recordings[ID] ) )

RETURN

DIVIDE ( [TotalHours], TotalID )

Re: Countax with selectedvalue expresion returns Zero

Anonymous — Thu, 21 Jan 2021 11:07:11 GMT

Wow That's it!!! Modify the time in a new column allows me to calculate speed metrics by actor and conten type, not just by content type 😄

Amazing!!!

Thanks a lot for your help!

Re: Countax with selectedvalue expresion returns Zero

Anonymous — Thu, 21 Jan 2021 11:08:49 GMT

It works well a solves the problem!!!

Cheers!!