Add value to only one distinct date

[MagnusErler]

I want to add a "1" in the beginning of each day and only once. 

rmd_date	I want to create this column
12-04-2023	0
12-04-2023	1
11-04-2023	0
11-04-2023	0
11-04-2023	1
10-04-2023	1
9-04-2023	0
9-04-2023	0
9-04-2023	1

[DOLEARY85]

Okay to do this:

First i would sort the order of you date field ascending then add an index in power query.

then create a column in DAX:

Column 2 =

IF (CALCULATE (COUNTROWS ('Table (4)'),FILTER (ALLEXCEPT ( 'Table (4)', 'Table (4)'[Date] ),'Table (4)'[Index] <= EARLIER ('Table (4)'[Index] )))> 1, 0, 1)

If I answered your question, please mark my post as solution, Appreciate your Kudos 👍

[MagnusErler]

Thank you for your resposse. It however doesn't seem to work...
My line:

IF( CALCULATE( COUNTROWS( MG_casing_record, FILTER( ALLEXCEPT (MG_casing_record, MG_casing_record[rmd_date]), MG_casing_record[id] <= EARLIER (MG_casing_record[id]))) > 1, 0, 1))

It gives me this warning: "Too many arguments were passed to the COUNTROWS function. The maximum argument count for the function is 1."

[DOLEARY85]

Hmmm okay, try changing the COUNTROWS  to COUNT

[MagnusErler]

This also doesn't seem to work... Could you send me the PBI-file? 🙂

[DOLEARY85]

I don't seem to be able to share the file, i'm getting an unsupported message. Do you have a share drive i can drop it in?

[DOLEARY85]

Hi, you could use a calculated column with DAX,

i've assumed the 1 and 0 depends on whether you want a day adding or not if so:

Column = if(VALUE('Table (4)'[Value])=1,DATEADD('Table (4)'[Date],1,DAY))

If I answered your question, please mark my post as solution, Appreciate your Kudos 👍

[MagnusErler]

Thank you. I have updated the question. Hope it makes more sense now 🙂