Unique value

[ChiRomeu]

Dear member,

 could you please kindly help me to solve the following problem:

 I would like to get this result in table of power. 

Best regards

Chi

[tamerj1 · Accepted solution]

HI @ChiRomeu 
Usually this requires an index column easily added using power query with one click. However, if this is not possible for any reason you can create a new calculated table as follows. (refer to attached sample file)

Where 'Data' is the original table

Data New = 
VAR Items = CONCATENATEX ( Data, Data[MasterId], "|" )
VAR Length = PATHLENGTH ( Items )
VAR T1 = GENERATESERIES ( 1, Length, 1 )
VAR T2 = ADDCOLUMNS ( T1, "@Index", [Value], "@MasterID", PATHITEM ( Items, [Value] ) )
VAR T3 = 
    ADDCOLUMNS ( 
        T2, 
        "@UniqueValue", 
        VAR CurrentID = [@MasterID]
        VAR CurrentIndex = [@Index]
        VAR FirstIndex = MINX ( FILTER ( T2, [@MasterID] = CurrentID ), [@Index] )
        RETURN
            IF ( CurrentIndex = FirstIndex, 1, 0 )
    )
RETURN
    SELECTCOLUMNS ( T3, "Master ID", [@MasterID], "Unique Value", [@UniqueValue] )

[ChiRomeu]

Thanks a lot!

[Whitewater100]

Hi:

Assuming your table name = "Data" you can use this caclculated column:

Unique =

VAR CountID =

COUNTROWS(

               FILTER(ALL(Data),

               'Data'[Master_ID] = EARLIER(Data[Master_ID])))

RETURN

IF(CountID >1,0, 1)

I hope this helps!

[ChiRomeu]

Thank you for info.

Is it possible to include the first row about the >2 rows?

best regards

[Whitewater100]

YEs, like this?

Unique R =

IF(

COUNTROWS(

               FILTER(ALL(Data),

               'Data'[Master_ID] = EARLIER(Data[Master_ID])))

 >1,0, 1)

If this helps, please mark as solution.Have a nice day!

[ribisht17]

@ChiRomeu 

Option 1 - https://forum.enterprisedna.co/t/counting-first-occurences/17688/12

Option 2-https://www.myonlinetraininghub.com/excel-forum/power-query/flag-first-instance-of-a-value-in-one-co...

Regards,

Ritesh