Calculated Index column based on groups

[fraza]

Can anyone help me with this.?

I need make the calculated column on the right hand side that only increments when the original field changes its value.

Noticed that the increments should keep increasing even though the a original group value may repeat the index should not.

Is there an option or some dax etc to achieve this?

[V-pazhen-msft · Accepted solution]

@fraza 

This is logically not possible since you don't have a field to group by. As the workaround, you could add an index column and flag column before getting the rank, which is a bit confusing.

1. add an index column in power query

2. create a flag column 

Flag =

var current_=[Original]

var current_1= CALCULATE(MAX([Original]),FILTER('Table',[Index]=EARLIER([Index])-1))

var current_2 = CALCULATE(MAX([Original]),FILTER('Table',[Index]=EARLIER([Index])-2))

var index_1=CALCULATE(SUM('Table'[Index]),FILTER('Table',[Index]=EARLIER([Index])-1))

var index_2=CALCULATE(SUM('Table'[Index]),FILTER('Table',[Index]=EARLIER([Index])-2))

Return

IF(current_=current_1&&current_1=current_2,index_2,IF(current_=current_1,index_1,[Index]))

3. create the rank column

Paul Zheng _ Community Support Team
If this post helps, please Accept it as the solution to help the other members find it more quickly.