Find duplicates between "date selected" and "date selected" - 30 days

[JayV]

Hi! 🙂
I have date filters (slicer) for year, month and day in a model that uses a table with [ID] and [Date]
I want to show the duplicates between the "Date selected" and ("Date selected" -30 days)
This is the table:

If i select "December 1st, 2022" it should only show these:

Thank you!

[JayV]

I tried using EARLIER() in a calculated column:

Repetitive_column =
IF (
    COUNTROWS ( FILTER ( 'Table', 'Table'[ID]  = EARLIER ( 'Table'[ID] ) ) )
        > 1,
    "YES",
    "NO"
)

I also tried using this measure and it almost worked (adding the Repetitive_column to the filters if "YES"); It also shows non-duplicates inside the 30d range (if it is a duplicate it shows the row that's inside the 30d range and exclude the one outside):

Datefilter_measure =
CALCULATE (
    COUNTROWS('Table'),
    DATESINPERIOD ( 'Table'[Date], LASTDATE ( 'Table'[Date] ), -30, DAY ) 
)

[amitchandak]

@JayV , Try meausres like this

Have duplicate
measure =
var _cnt = calculate(count('Table'[ID]))
return
countx(Values('Table'[ID]), if(_cnt>1, [ID], Blank()))

Have No duplicate
measure =
var _cnt = calculate(count('Table'[ID]))
return
countx(Values('Table'[ID]), if(_cnt>1, [ID], Blank()))

[JayV]

Excuse me, where should i use this or how could i add the -30 day filter? should i add it to my existing dax?
Thanks for the help!