DAX

[Anonymous]

I need the following in DAX format.

Requirement: I have a table called Transactions which has 3 columns ID, [Billing Type] and [Year-Month] as mentioned below. I need to create a measure that should show that ID 1 receives its 10th Credit Card in the month of October, while ID 2 receives its 10th Credit Card in the month of May, while ID 3 receives its 10th Credit Card in the month of October. 

So we have now 1 in May (2017-05) and 2 in Oct (2017-10)

My expectation is that this measure would show 0 from 2017-01 through 2017-04, 1 from 2017-05 through 2017-09, and 3 from 2017-10 thru 2017-12.

Transactions Table

ID	Billing Type	Year-Month
1	Credit Card	2017-01
1	Credit Card	2017-02
1	Credit Card	2017-03
1	Credit Card	2017-04
1	Credit Card	2017-05
1	Credit Card	2017-06
1	Credit Card	2017-07
1	Credit Card	2017-08
1	Credit Card	2017-09
1	Credit Card	2017-10
1	Credit Card	2017-12
2	Credit Card	2017-01
2	Credit Card	2017-02
2	Credit Card	2017-02
2	Credit Card	2017-03
2	Credit Card	2017-03
2	Credit Card	2017-04
2	Credit Card	2017-04
2	Credit Card	2017-05
2	Credit Card	2017-05
2	Credit Card	2017-06
2	Credit Card	2017-12
3	Credit Card	2017-01
3	Credit Card	2017-06
3	Credit Card	2017-01
3	Credit Card	2017-01
3	Credit Card	2017-12
3	Credit Card	2017-01
3	Credit Card	2017-06
3	Credit Card	2017-12
3	Credit Card	2017-01
3	Credit Card	2017-10
5	Credit Card	2017-10
5	Credit Card	2017-12

I need to show the output as below

Now I need to get the same result using DAX. Can someone please help me to get the same using DAX?

[Zubair_Muhammad]

Hi @Anonymous

Try this technique

1) First Add an Index Column from the Query Editor

2) Then Add a RANK Calculated Colum

RANK =
RANKX (
    FILTER ( TableName, TableName[ID] = EARLIER ( TableName[ID] ) ),
    TableName[Index],
    ,
    ASC,
    DENSE
)

3) Now you can use this MEASURE

Measure =
CALCULATE ( COUNT ( TableName[ID] ), TableName[RANK] = 10 )

[Anonymous]

Sorry @Zubair_Muhammad, The result is not as expected 

Until April (2017-05) there is no 10th Credit Card. We have 1 in May (2017-05) and then 2 in October (2017-10). So we have to plot 0 till April and 1 till September and since we have 2 in October, we have to sum up the May 1 and October 2 and show as 3 from October to December

[Zubair_Muhammad · Accepted solution]

@Anonymous

Please change the MEASURE to following

But i Have following observtions

1) 10 th occurence of ID 2 is in June

2) November 2017 date doesn't exist in your data

Measure =
VAR mycount =
    CALCULATE (
        COUNT ( TableName[ID] ),
        FILTER (
            ALL ( TableName ),
            TableName[Year-Month] <= SELECTEDVALUE ( TableName[Year-Month] )
                && TableName[RANK] = 10
        )
    )
RETURN
    IF ( ISBLANK ( mycount ), 0, mycount )

[Anonymous]

Thanks @Zubair_Muhammad

This is exactly what I'm looking for. Thanks again!

[Zubair_Muhammad]

@Anonymous

Please see the attached file here