Count rows if between two time slots

[Anonymous]

Dear all,

I have the following issue which I think should be relatively easy to solve, but I have not found a solution yet. Currently I have below table in excel but I would like to get the same result (Column F) in a query in PowerBI.  Basically it comes down to this, Column A is a long list of events happening on the specified date/time. I would like to count how many events happen (F) in a timeframe of 10 minutes (between C and D). Some helper columns are made to come to the result in column F (Column B en E)

In Excel the following calculations are applied, but perhaps the calcaluation could be made way easier in PowerBI. Hope somebody could help me out with this one! If more info is needed please let me know.

A = raw data

B = VLOOKUP(A2;C$2:E$8527;3)

C = A

D = A + 10 minutes

E = Index column

F= COUNTIF(B:B;E2)

Column A	ColumnB	ColumnC	ColumnD	ColumnE	ColumnF
Timestamp	Count	Timestart	Time + 10 minutes	Index	Slice count
1-09-20 0:00:04	1	1:9:2020 00:00:04	1:9:2020 00:10:04	1	1
1-09-20 0:02:48	2	1:9:2020 00:02:48	1:9:2020 00:12:48	2	1
1-09-20 0:14:07	3	1:9:2020 00:14:07	1:9:2020 00:24:07	3	1
1-09-20 0:24:49	4	1:9:2020 00:24:07	1:9:2020 00:34:07	4	3
1-09-20 0:27:04	4	1:9:2020 00:34:07	1:9:2020 00:44:07	5	1
1-09-20 0:31:37	4	1:9:2020 00:44:07	1:9:2020 00:54:07	6	0
1-09-20 0:35:04	5	1:9:2020 00:54:07	1:9:2020 01:04:07	7	0
1-09-20 1:15:35	9	1:9:2020 01:04:07	1:9:2020 01:14:07	8	0
1-09-20 1:19:23	9	1:9:2020 01:14:07	1:9:2020 01:24:07	9	2
1-09-20 1:24:08	10	1:9:2020 01:24:07	1:9:2020 01:34:07	10	3
1-09-20 1:25:45	10	1:9:2020 01:34:07	1:9:2020 01:44:07	11	1
1-09-20 1:33:30	10	1:9:2020 01:44:07	1:9:2020 01:54:07	12	1

[Greg_Deckler]

@Anonymous - Should be something like:

Column = 
  VAR __Start = [Timestart]
  VAR __End = [Time + 10 Minutes]
RETURN
  COUNTROWS([Timestamp]>=__Start && [Timestamp]<=__End)

[Anonymous]

Dear @Greg_Deckler 

Thanks for your quick reply! Your solution translates as following in my powerBI file:

Column =

VAR __Start = 'KPI-Export-2020-09'[Start]

VAR __End = 'KPI-Export-2020-09'[End]

RETURN

COUNTROWS('KPI-Export-2020-09'[Date/time]'>=__Start && 'KPI-Export-2020-09'[Date/time]<=__End)

However, I get the following error:

Syntax for '>=__Start&& is not correct

Do you perhaps know how I should re-write the syntax? I've tried a couple of things but not succesful unfortunately.

Best regards!

[v-yingjl · Accepted solution]

Hi @Anonymous ,

You can modify the formula like this:

Column =
VAR __Start = [Timestart]
VAR __End = [Time + 10 Minutes]
VAR _count =
    COUNTROWS (
        FILTER ( ALL ( 'table' ), [Timestamp] >= __Start && [Timestamp] <= __End )
    )
RETURN
    IF ( ISBLANK ( _count ), 0, _count )

Best Regards,
Yingjie Li

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