Forum Discussion

Anonymous's avatar
Anonymous
Not applicable
9 years ago

Count purchases after another purchase

Hello everybody,   I've got a table like: id | timestamp | uid | tariff_name | 1    16.01.2017   id001  tariff_A 2    16.01.2017   id002  tariff_A 3    17.01.2017   id001  tariff_B 4    18.01....
BetterCallFrank's avatar
BetterCallFrank
Resolver IV
9 years ago

hi Anonymous

you could do a calc column like this

CntLaterPurchases = 
CALCULATE(
  COUNTROWS(
    FILTER(
      table,
      AND( table[uid] = EARLIER(table[UID]), table[id] > EARLIER(table[id]) )
    )
  )
)

HTH,

Frank

  • Anonymous's avatar
    Anonymous
    Not applicable
    9 years ago

    hi BetterCallFrank thanks for reply, i've got the following error: "EARLIER/EARLIEST refers to an earlier row context which doesn't exist", what can i do wrong?)

    And what about if the first purchase was tariff_B, then tariff_A, and then tariff_C - i need to count only tariff_C - is it possible with your suggestion?

    • BetterCallFrank's avatar
      BetterCallFrank
      Resolver IV
      9 years ago

      Hi Anonymous

       

      for your first question, try this measure:

      Cnt Later Purchase of Customer:=
      IF( HASONEVALUE(Table1[uid] ),
  VAR TheUID = VALUES( Table1[uid] )
  VAR TheID = MAX( Table1[id] )
  RETURN
  COUNTROWS(
      FILTER(
         ALL( Table1 ), AND( Table1[uid] = TheUID, Table1[id] > TheID )
      )
  )
)