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Anonymous's avatar
Anonymous
Not applicable
6 years ago
Solved

Cumulative Counts

Hello,

 

I am dealing with a dataset for a hotel and I am trying to create a graph that shows the ramp up of reservations made for a certain date (usually a holiday). 

 

I have created a measure (Cumulative_Count) that is supposed to count the number of cumulative reservations prior to a set date. For example, as of 6/30/19, how many reservations do I have for 7/04/19. As of now I can not get the measure to "ramp" up to the total count, it is just showing me the grand total of reservations for the target date and resulting in a flat line. I have read many threads on this topic but can not get it to work. 

 

I have created a sample pbix file with the measure as well as a example excel document to show the expected result. They can be downloaded at this link: https://www.dropbox.com/sh/y0lvjyzcnq7iygz/AABedKjIVopWFsaHLhW9r9a4a?dl=0

 

Any help is much appreciated. 

Need Help
  • lc_finance's avatar
    lc_finance
    6 years ago

    HI Anonymous ,

     

     

    You can download my proposed solution from here.

     

    Here is the DAX formula I propose for it:

    Cumulative_Count 2 = 
var currentDate = MAX('Reservations'[res_created_at_date])

return CALCULATE(COUNTROWS(FILTER('Reservations','Reservations'[res_created_at_date]<=currentDate)), ALL('Reservations'[res_created_at_date].[Month], 'Reservations'[res_created_at_date].[MonthNo], 'Reservations'[res_created_at_date].[Day]))

     

    Let me know if that works for you.

     

    LC

    Interested in Power BI and DAX templates? Check out my blog at www.finance-bi.com

5 Replies

  • lc_finance's avatar
    lc_finance
    Solution Sage
    6 years ago

    HI Anonymous ,

     

     

    You can download my proposed solution from here.

     

    Here is the DAX formula I propose for it:

    Cumulative_Count 2 = 
var currentDate = MAX('Reservations'[res_created_at_date])

return CALCULATE(COUNTROWS(FILTER('Reservations','Reservations'[res_created_at_date]<=currentDate)), ALL('Reservations'[res_created_at_date].[Month], 'Reservations'[res_created_at_date].[MonthNo], 'Reservations'[res_created_at_date].[Day]))

     

    Let me know if that works for you.

     

    LC

    Interested in Power BI and DAX templates? Check out my blog at www.finance-bi.com

    • Anonymous's avatar
      Anonymous
      Not applicable
      6 years ago

      Thank you lc_finance,

       

      Yes, that formula does appear to work. Can you expand on why you used the [.Month], [.Day] tags after the columns name. Normally I only need to name the column and do not need to specify those items. Could this be why my graph does not act like other I have used? Normally I can see everyday when I move my mouse over a graph and click on the specific day to drill down. The chart in your example appears to only be able to do months. 

       

      Thank you for the continued help. 

      • lc_finance's avatar
        lc_finance
        Solution Sage
        6 years ago

        Hi Anonymous ,

         

         

        The need for specifying [.Month], [.Day] is because Power BI 'derives' multiple columns from a Date column.

        These 'derived' columns are Month, Day, Year, Quarter, etc. These additional columns allow you to filter by days, month, quarter, etc when you have a Date column.

         

        Now back to your request: as you want to show all reservations made prior to a certain date, I had to remove the filter on Dates.

        If I did not remove the filter on Dates, you would see on June 15 only reservation made on June 15, on June 16 only reservation made on the 16, etc. I removed them using ALL, and I had to apply ALL to the different 'derived' columns as above.

         

        Does this help you?

         

        LC

        Interested in Power BI and DAX templates? Check out my blog at www.finance-bi.com