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ghaines's avatar
ghaines
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2 years ago
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Best way to approach some data

I'm working with some data that records a primary failure reason ID in one column, and other failure reason IDs as CSV in another column.  The primary failure reason may or may not be represented in the other failure reason column.

 

My desired outcome is to calculate in DAX Count(VALUES(Transaction_ID)), meaning when there is no filter on failure reasons you will just get the transaction count, so I want to expand the failure reason column while especially preserving the primary failure reason.  So I'd want something like

 

Transaction IDPrimary Failure ReasonFailure Reason
133, 4

->

Transaction IDFailure Reasons
13
14

 

 

and

 

Transaction IDPrimary Failure ReasonFailure Reason
134,5 

->

Transaction IDFailure Reasons
13
14
15

 

Preserving which reason is the primary reason is on the wishlist but not necessarily needed.

 

My solution so far is to transform Failure Reason to a list, combine with primary failure as a one element list, resolve to a unique list, and then expand to rows.  Is there a more efficient solution, or one that would more naturally identify the primary failure reason?

 

Thanks in advance.

  • You could

    List.RemoveItems(Text.Split([Failure Reason], ","), {[Primary Failure Reason]})

    Then add a suffix to the primary reason like ":P"

    Combine into a list, split to new rows, split by ":" into columns.

    The rows with the "P" in the new column are the primary reasons.

3 Replies

  • You could

    List.RemoveItems(Text.Split([Failure Reason], ","), {[Primary Failure Reason]})

    Then add a suffix to the primary reason like ":P"

    Combine into a list, split to new rows, split by ":" into columns.

    The rows with the "P" in the new column are the primary reasons.

    • ghaines's avatar
      ghaines
      Icon for Resolver I rankResolver I

      And with this I could reliably set where the primary failure reason appears.  Thanks!

  • Hello, ghaines your current approach seems good to me. But if you like complications then try this

        to_list = List.Buffer(Table.ToList(Source, (x) => x)),
        txform = Table.FromRecords(
            List.TransformMany(
                to_list,
                (x) => List.Distinct({Text.From(x{1})} & Splitter.SplitTextByDelimiter(",")(x{2})),
                (id, reason) => [Transaction ID = id{0}, Failure Reason = reason]
            )
        )