Previous duration record

[elouizi]

Hi,

I am new to Power BI. I want to calculate the previous duration record of a project. I have being trying with Earlier function. But that did not work for me. Please dont use previousYear-fucntion because the dates vary alot. this is just a simple example

Can anyone please help me?

Regards,

Elouizi

[Ashish_Mathur]

Hi,

This calculated column formula works

=LOOKUPVALUE(Data[DurationinMinutes],Data[Date],CALCULATE(MAX(Data[Date]),FILTER(Data,Data[Brand]=EARLIER(Data[Brand])&&Data[Date]<EARLIER(Data[Date]))),Data[Brand],Data[Brand])

Hope this helps.

[elouizi]

Hi Ashish_Mathur,

My replay was to you. :).

I dont know why, but it says that it cannot find the column "brand" and the "date" columns.
Is there another way I can solve this without creating a colum? Otherwise I may need to create lots of other columns

Thanks!

[Ashish_Mathur]

Hi,

Share the link from where i can download your PBI file.

[elouizi]

Hi Ashish,

Please find the links below:

data file (Excel and pbix file)

https://mega.nz/file/9aYRBIRa#IO2OJ9T9xOo63BGMMjbKBxPGYZ78xwMNkhsPboBdBAY

https://mega.nz/file/lOJnQSaZ#GKScuWtFwcFh6-N-AhBz-mnP9buWpi60LHH4RstEVMQ

Many Thanks!

[Ashish_Mathur · Accepted solution]

Hi,

This calculated column works fine

=LOOKUPVALUE('Duration'[Duration],'Duration'[Date],CALCULATE(MAX('Duration'[Date]),FILTER('Duration','Duration'[Brand]=EARLIER('Duration'[Brand])&&'Duration'[Date]<EARLIER('Duration'[Date]))),'Duration'[Brand],'Duration'[Brand])

Hope this helps.

[elouizi]

Looks amazing. Is there a way I can use it as a messaure? Because I need to do other calculations, otherwise I need to create a lot of columns (which will impact the performance)

[Ashish_Mathur]

Whom are you replying to?  Did my calculated column formula work?

[Greg_Deckler]

@elouizi - If you want to create a column, you can use EARLIER, see my article on Mean Time Between Failure (MTBF) which uses EARLIER: http://community.powerbi.com/t5/Community-Blog/Mean-Time-Between-Failure-MTBF-and-Power-BI/ba-p/3395....
The basic pattern is:
Column = 
  VAR __Current = [Value]
  VAR __Previous = MAXX(FILTER('Table','Table'[Date] < EARLIER('Table'[Date])),[Value])
RETURN
  __Current - __Previous

If you want a measure then @mahoneypat 's formula should work.

[mahoneypat]

Are you trying to create a new column or measure?  Here is a measure expression that should work.  Replace "Table" with your actual table name and try it in a table visual with your Date, Brand, and Duration columns.

LastDuration =
VAR thisdate =
    MIN ( Table[Date] )
RETURN
    CALCULATE (
        LASTNONBLANKVALUE ( Table[Date], MAX ( [Table[Duration] ) ),
        ALLEXCEPT ( Table, Table[Brand] ),
        Table[Date] < thisdate
    )

If this works for you, please mark it as the solution.  Kudos are appreciated too.  Please let me know if not.

Regards,

Pat

[elouizi]

Hi,

Thank you so much for you quick response.

I tried the formula. But it showed me the previous dates and not the previous duration.

I changed the formula a little bit to get the duration out of it. But it did not give me the expected results.

Could you please explain the formula? I'm a newbie that wants to learn new things.

Thanks!