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Buster's avatar
Buster
Frequent Visitor
6 years ago
Solved

Time duration between rows in same column

I am very new to BI and attempting some self paced learning. I have read through a few posts here to assiust with solving my problem but with no succes as yet.   Attempting to calculate time durat...
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Buster's avatar
Buster
Frequent Visitor
6 years ago

Thanks d_gosbell  and apologies for the lack of clarity

I am attempting to create a new column in the querry editor that produces a time difference/duration time based on current row to the preceeding row of the Arrival Time column after the Arrival Time column has been sorted in Ascending order.

your solution allowed me to create a time difference column  by creating a new column if modelling but I can not sort the Arrival Time in Ascending order as the arrival time is sorted in Date Hierarchy format Year/Quarter/Month/Day

v-lili6-msft's avatar
v-lili6-msft
Community Support
6 years ago

hi, Buster 

Do you mean that you want to create it in edit queries? For you need to sort arrival time in Date Hierarchy format Year/Quarter/Month/Day in edit queries.

If so, just adjust the solution as below:

Step1:

After you sort arrival time in Date Hierarchy format Year/Quarter/Month/Day in edit queries, Then add an Index column.

Step2:

Then add a New column by this formula in modeling

Column = 
var _currentIndex = Table1[Index]
var _previousIndex = maxx( filter(VALUES(Table1[Index]), Table1[Index] < _currentIndex), [Index])
return if (_previousIndex = 0, blank(), DATEDIFF( CALCULATE(SUM(Table1[arrival time]),FILTER(Table1,Table1[Index]=_previousIndex)), Table1[arrival time], MINUTE))

 

Regards,

Lin