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Iamnvt's avatar
Iamnvt
Continued Contributor
6 years ago
Solved

Remove duplicate values after separator in Calculated Column

hi,   I need to use DAX calculate column function to remove the dupplicate value:   Input Expected Output A, A, B A, B B, B, C B, C   how to do this? thanks  
Need Help
  • TomMartens's avatar
    TomMartens
    6 years ago

    Hey Iamnvt ,

     

    in Power Pivot you are able to use the CALENDAR function as is described here:

    https://www.sqlbi.com/articles/generating-a-series-of-numbers-in-dax/

     

    Here is the DAX statement from above now using the function CALENDAR:

     

    output calendar = 

var _in = 'Table'[input]
var _inAsPath = SUBSTITUTE(_in , ", " , "|")
var _inPathLength = PATHLENGTH(_inAsPath)
var _T = DISTINCT(SELECTCOLUMNS(ADDCOLUMNS(SELECTCOLUMNS(CALENDAR(1 , _inPathLength), "_Value", INT(''[Date])), "@item", PATHITEM(_inAsPath , [_Value] , TEXT)) , "@@item", [@item]))
return
CONCATENATEX(_T ,  [@@item], ", ")

     

    Regards,

    Tom

TomMartens's avatar
TomMartens
Super User
6 years ago

Hey Iamnvt ,

 

you can use this DAX to create a calculated column:

output = 
var _in = 'Table'[input]
var _inAsPath = SUBSTITUTE(_in , ", " , "|")
var _inPathLength = PATHLENGTH(_inAsPath)
var _T = CONCATENATEX(DISTINCT(SELECTCOLUMNS(ADDCOLUMNS(GENERATESERIES(1 , _inPathLength) , "@PathItem" , PATHITEM(_inAsPath , [Value] , TEXT)) , "@@pahItme" , [@PathItem])), [@@pahItme] , ", ")
return
_T

This is how it looks like:

 

Iamnvt's avatar
Iamnvt
Continued Contributor
6 years ago

TomMartens  thanks for the answer

 

DAX in Power Pivot doesn't have GENERATESERIES function. 

is there any other way around?

  • TomMartens's avatar
    TomMartens
    Super User
    6 years ago

    Hey Iamnvt ,

     

    in Power Pivot you are able to use the CALENDAR function as is described here:

    https://www.sqlbi.com/articles/generating-a-series-of-numbers-in-dax/

     

    Here is the DAX statement from above now using the function CALENDAR:

     

    output calendar = 

var _in = 'Table'[input]
var _inAsPath = SUBSTITUTE(_in , ", " , "|")
var _inPathLength = PATHLENGTH(_inAsPath)
var _T = DISTINCT(SELECTCOLUMNS(ADDCOLUMNS(SELECTCOLUMNS(CALENDAR(1 , _inPathLength), "_Value", INT(''[Date])), "@item", PATHITEM(_inAsPath , [_Value] , TEXT)) , "@@item", [@item]))
return
CONCATENATEX(_T ,  [@@item], ", ")

     

    Regards,

    Tom