Flag to identify new user in a dataset

[Anonymous]

Hi All,

I have a dataset with user information date wise. I need to add a custom column flagging the new users based on the date. In the below dataset on 6/2/2020, have 2 new users(X, Y) when compared with previous records .Could you please help me achieve this. 

[amitchandak]

@Anonymous , Create a Column sub-category Rank. Date inside the customer. Rank =1 

if([Rank] =1,"N",blank())

For Rank Refer these links

https://radacad.com/how-to-use-rankx-in-dax-part-1-of-3-calculated-columns
https://radacad.com/how-to-use-rankx-in-dax-part-2-of-3-calculated-measures
https://radacad.com/how-to-use-rankx-in-dax-part-3-of-3-the-finale
https://community.powerbi.com/t5/Community-Blog/Dynamic-TopN-made-easy-with-What-If-Parameter/ba-p/367415

[Anonymous]

Hi @amitchandak ,

Actually I don't want to rank the data but need to add a flag. Could you please use the same dataset and share the calculation?

Thanks

[v-lionel-msft · Accepted solution]

Hi @Anonymous ,

Yes, @amitchandak 's answer is right. you should do like this.

Column = 
var new = 
RANKX(
    FILTER(
        'Sheet2',
        Sheet2[User] = EARLIER(Sheet2[User])
    ),
    Sheet2[Name].[Date],
    ,ASC,Dense
)
return 
IF(
    new=1,
    "N",
    BLANK()
)

Best regards,
Lionel Chen

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