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Mitchell92's avatar
Mitchell92
Helper II
3 years ago

Calculated Column - Need Assistance with formula

Hi all,   I have the below calculated column that works fairly well to calculate timeframe between events in a table based on a "Key":   DaysBetweenEvents = if(VAR temp=TOPN(1,Filter(vwACCCSTWor...
Need Help
Mitchell92's avatar
Mitchell92
Helper II
3 years ago

I have added in an index table for the events which may make this calc easier. I'm assuming index just needs to be added to check for an earlier index value per Key, but I can't get it to work unfortunately.

 

Anonymous's avatar
Anonymous
Not applicable
3 years ago

Hi Mitchell92 ,

Please try:

DaysBetweenEvents = 
VAR _index =
    CALCULATE (
        MIN ( 'vwACCCSTWorkload2'[Index] ),
        FILTER (
            ALL ( 'vwACCCSTWorkload2' ),
            'vwACCCSTWorkload2'[Key] = EARLIER ( vwACCCSTWorkload2[Key] )
                && 'vwACCCSTWorkload2'[Date] >= EARLIER ( 'vwACCCSTWorkload2'[Date] )
        )
    )
RETURN
    IF (
        'vwACCCSTWorkload2'[Index] = _index,
        IF (
            VAR temp =
                TOPN (
                    1,
                    FILTER (
                        vwACCCSTWorkload2,
                        vwACCCSTWorkload2[Key] = EARLIER ( vwACCCSTWorkload2[Key] )
                            && 'vwACCCSTWorkload2'[Date] < EARLIER ( vwACCCSTWorkload2[Date] )
                    ),
                    'vwACCCSTWorkload2'[Date], DESC
                )
            RETURN
                DATEDIFF (
                    MINX ( temp, 'vwACCCSTWorkload2'[Date] ),
                    'vwACCCSTWorkload2'[Date],
                    DAY
                ) = 0,
            0,
            VAR temp =
                TOPN (
                    1,
                    FILTER (
                        vwACCCSTWorkload2,
                        vwACCCSTWorkload2[Key] = EARLIER ( vwACCCSTWorkload2[Key] )
                            && 'vwACCCSTWorkload2'[Date] < EARLIER ( vwACCCSTWorkload2[Date] )
                    ),
                    'vwACCCSTWorkload2'[Date], DESC
                )
            RETURN
                DATEDIFF (
                    MINX ( temp, 'vwACCCSTWorkload2'[Date] ),
                    'vwACCCSTWorkload2'[Date],
                    DAY
                )
        )
    )

Best Regards,
Gao
Community Support Team

 

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  • Mitchell92's avatar
    Mitchell92
    Helper II
    3 years ago

    Hi Gao,

     

    This is 99% perfect, thank you!! One last thing though - how do I make it return a zero if there are no days between events (instead of blanks). This will allow averages to include events with 0 rather than ignore.

     

    Thank you!

    • Mitchell92's avatar
      Mitchell92
      Helper II
      3 years ago

      Hi Anonymous ,

       

      I've put the formula into practice now and it seems to work well 90% of the time. I want to thank you initially for that - has helped demonstrate what I am after tremendously.

       

      A problem I have noticed is when an event (in this case, I am using it as my "Index") date is greater than the previous event date, however, a smaller event/index with a later date exists, the formula does not calculate on those events. I am wondering if the formula can be adjusted to essentially calculate differences in date when the event/index has changed? I.e. so it still is 0 for multiple events registering on the same day?

       

      Example below:

       

       

      Thanks,

       

      Mitch