Value Difference Between 2 Consecutive Dates

[markefrody]

Hi everybody,

I'm trying via DAX to get the difference between 2 consecutive dates but I'm having a difficult time in creating it. Weekend (Saturday and Sunday) should be excluded in the calculations. 

For example:

For Plan Date "8/8/2023" (Tuesday) with a count of "17" will be compared to the previous weekday which is "8/7/2023" (Monday) with a count of "16". So the calculation would be "17 - 16 = 1". Please note that these 2 dates are weekdays (not Saturday nor Sunday).

For Plan Date "8/7/2023" (Monday) with a count of "16" will be compared to the previous weekday which is "8/4/2023" (Friday) with a count of "16". So the calculation would be "16 - 16 = 0". Please note that date "8/5/2023" is not included in the calculation because it is a Saturday. Saturday and Sundays needs to be excluded in the calculation.

Please note that this calculation needs to be done for similar named groups only in column "Group". So for example, Group A will need to get the difference between 2 consecutive dates for Group A only.  So for Group B, get difference between 2 consecutive dates for Group B only.

Sharing to you a sample file in Power BI containing the raw data.
https://www.dropbox.com/scl/fi/l2dk6lgjxm7p3m4r2hxio/Example.pbix?rlkey=30zlbdiv3210siznebijaafhv&dl...

Appreciate your kind assistance. 

Best regards,
Mark V

[v-yueyunzh-msft · Accepted solution]

Hi , @markefrody 

Thanks for your sample pbix file first! Here are the steps for your need.

We can create a measure like this:

Measure = var _t = SUMMARIZE(ALLSELECTED('Data3') ,'Data3'[Plan Date MM/DD/YYYY],'Data3'[Group],Data3[Weekday],"Count",SUM('Data3'[Count]))

var _cur_group = MAX('Data3'[Group])

var _t2= FILTER(_t , [Group] = _cur_group)

var _cur_date = MAX('Data3'[Plan Date MM/DD/YYYY])

var _t3 = FILTER(_t2 , [Plan Date MM/DD/YYYY]<_cur_date && NOT( [Weekday] in {6,7}))

var _pre_date = MAXX(_t3 , [Plan Date MM/DD/YYYY])

return

IF(MAX('Data3'[Weekday]) in {6,7} , BLANK() , SUM('Data3'[Count]) - SUMX(FILTER(_t3 , [Plan Date MM/DD/YYYY] = _pre_date) , [Count]))

Then we can put this measure on your visual , and we can get the result as follows:

Best Regards,

Aniya Zhang

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

[markefrody]

Hi Aniya. Your DAX is awesome! I finally got the results I wanted. Thank you very much! Really appreciate your help.

[amitchandak]

@markefrody , There are a few ways we can create last noncontinuous day

Last Day Non Continuous = CALCULATE([sales],filter(ALLSELECTED('Date'),'Date'[Date] =MAXX(FILTER(ALLSELECTED('Date'),'Date'[Date]<max('Date'[Date])),'Date'[Date])))

Last Day Non Continuous = CALCULATE([sales],filter(ALLSELECTED('Date'),'Date'[Date] =calculate( max(Sales[Sales Date]), FILTER(ALLSELECTED('Date'),'Date'[Date]<max('Date'[Date])))))

Day Intelligence - Last day, last non continous day
https://medium.com/@amitchandak.1978/power-bi-day-intelligence-questions-time-intelligence-5-5-5c324...