Calendar Running Total line graph

Hi, Anonymous 

Based on your description, I created data to reproduce your scenario.

Table:

Calendar(a calculated table):

Calendar = CALENDAR(DATE(2020,1,1),DATE(2020,3,31))

You may create a calculated column as below.

WeekNum = WEEKNUM('Calendar'[Date])

There is a one-to-one relationship between two tables.

Then you can create a measure as below.

Count Running total = 
var _weeknum = SELECTEDVALUE('Calendar'[WeekNum])
var _date = SELECTEDVALUE('Calendar'[Date])
return
IF(
    ISINSCOPE('Calendar'[Date]),
    CALCULATE(
        COUNT('Table'[Date]),
        FILTER(
            ALLSELECTED('Calendar'),
            'Calendar'[Date]<=_date
        )
    ),
    CALCULATE(
        COUNT('Table'[Date]),
        FILTER(
            ALLSELECTED('Calendar'),
            'Calendar'[WeekNum]<=_weeknum
        )
    )
)

Result:

Best Regards

Allan

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