Count of Max Schedule Overlap

[klintala]

Basic Example pbix 

Given the columns: vendor, startdate, and duration, is there a way to return the the maximum count of simultaneous tasks?

example:

Vendor A	5/1/2020	7
Vendor A	5/2/2020	7
Vendor A	5/15/2020	7
Vendor A	6/1/2020	7
Vendor B	5/1/2020	5
Vendor B	5/15/2020	5
Vendor B	5/17/2020	5
Vendor B	5/18/2020	5
Vendor C	6/1/2020	10
Vendor C	6/20/2020	10

Vendor A will have a maximum of 2 tasks happening at the same time.

Vendor B will have a maximum of 3 tasks happening at the same time.

Vendor C will have a maximum of 1 task happening at the same time.

In the attached pbix example I have a similar table with more instances, along with a date table. 

[Icey]

Hi @klintala ,

Is this problem solved?

Best Regards,

Icey

[Icey · Accepted solution]

Hi @klintala ,

Try this:

1. Create [EndDate] column.

EndDate = [StartDate]+[Duration]

2. Create a Measure.

Measure = 
VAR t1 =
    SELECTCOLUMNS (
        'Table',
        "Vendor_", 'Table'[Vendor],
        "StartDate_", 'Table'[StartDate],
        "EndDate_", 'Table'[EndDate]
    )
VAR t2 =
    FILTER (
        CROSSJOIN ( 'Table', t1 ),
        [Vendor] = [Vendor_]
            && NOT ( [EndDate] <= [EndDate_] )
    )
VAR t3 =
    ADDCOLUMNS (
        t2,
        "MinDate_", IF ( [StartDate] >= [StartDate_], [StartDate], [StartDate_] ),
        "MaxDate", IF ( [EndDate] >= [EndDate_], [EndDate_], [EndDate] )
    )
VAR t4 =
    ADDCOLUMNS ( t3, "OverlapDay", DATEDIFF ( [MinDate_], [MaxDate], DAY ) )
VAR t5 =
    ADDCOLUMNS (
        t4,
        "Count_", COUNTAX (
            FILTER (
                t4,
                [Vendor] = EARLIER ( [Vendor] )
                    && [StartDate] = EARLIER ( [StartDate] )
                    && [OverlapDay] > 0
            ),
            [Vendor]
        )
    )
RETURN
    MAXX ( t5, [Count_] + 1 )

For more details, please check the attached PBIX file,

Best Regards,

Icey

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

[amitchandak]

@klintala ,

You can create end date

end Date = [Start Date]+7

and refer to this article that can help: https://community.powerbi.com/t5/Community-Blog/HR-Analytics-Active-Employee-Hire-and-Termination-tr...

[parry2k]

@klintala what is the logic to get task happening at the same time?