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htittoto's avatar
htittoto
Frequent Visitor
6 years ago
Solved

CountIfs by past data

 

Hello,

 

could someone help me? I'm trying to built a column in power query to count how many times have I made a sale and, most importantly, what sale (order by brand and date) was that. The image shows that the column "Previous Sale Count by Make" is what I'm having trouble with.

Need Help
  • Anonymous's avatar
    Anonymous
    6 years ago

    you mjust load you data and goes unde view/advance editors panel in PBI (I understood you use PBI, is it true?).

     

     

    inside this panel cut and paste the lines of code you find in my post.

    edit and modify so that you have a situation like this:

     

     

     

     

    that is all.

     

     

4 Replies

  • Anonymous's avatar
    Anonymous
    Not applicable
    6 years ago

    a guess for the "hard" part only 😁

    you have to add these lines after your lasta step and adapt the name of yourTab and other parameter as you like:

     

        grp = Table.Group(yourTab, {"Make"}, {{"grpMake", each Table.AddIndexColumn(_, "Prev by Make", 0, 1)}}),
    resulTab= Table.Sort(Table.ExpandTableColumn(grp, "grpMake", {"Model", "date", "Prev by Make"}),"date")
in
    resulTab

     

     

    • htittoto's avatar
      htittoto
      Frequent Visitor
      6 years ago

      Thanks for replying Anonymous ,

       

      unfortunately, I couldn't quite understand how to implement it, I believe I'm not that advanced in PBI yet. Could you please explain step-by-step how to implement it a little bit more, please?

      • Anonymous's avatar
        Anonymous
        Not applicable
        6 years ago

        you mjust load you data and goes unde view/advance editors panel in PBI (I understood you use PBI, is it true?).

         

         

        inside this panel cut and paste the lines of code you find in my post.

        edit and modify so that you have a situation like this:

         

         

         

         

        that is all.