DAX Replace repetitive string with one string

[Anonymous]

Hi Everyone,

I have a column with the click flow of a user on a specific day: 

ClickFlowColumn = CALCULATE(CONCATENATEX(ActivitiesTable, ActivitiesTable[ActivityType], ", "), ALLEXCEPT(ActivitiesTable, ActivitiesTable[UserId], ActivitiesTable[Date]))

BUT, When activities repeat themselves, it becomes impossible to visualise or group the data. I would like to replace repetitive strings (activities) with one single string:

What I have	What I want
ClickFlowColumn	ClickFlowColumn
click , click, preview, insert, insert, insert	click, preview, insert
click, search, search, search, preview	click, search, preview

Dax only please, because this is a calculated column.

Some help would be much appreciated!

[vanessafvg]

have you tried use the contcatenex function?
CONCATENATEX(VALUES(Table1[Column1]),[Column1])

[Anonymous]

Hi @vanessafvg 

That worked!

[Fowmy · Accepted solution]

@Anonymous 

What do you change your formula like this?

ClickFlowColumn =
CALCULATE (
    CONCATENATEX (
        VALUES ( ActivitiesTable[Activity Type] ),
        ActivitiesTable[Activity Type],
        ", "
    ),
    ALLEXCEPT ( ActivitiesTable, ActivitiesTable[UserId], ActivitiesTable[Date] )
)

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[Anonymous]

@Fowmy  That worked! Thank you! 

[amitchandak]

@Anonymous , three functions in power query should to it

Text.Split
https://docs.microsoft.com/en-us/powerquery-m/text-split

List.Distinct
https://docs.microsoft.com/en-us/powerquery-m/list-distinct

Text.Combine
https://docs.microsoft.com/en-us/powerquery-m/text-combine

[Anonymous]

@amitchandak thank you, but I'm working with calculated columns, so unfortunately Power Query won't solve my problem.