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emmabrice's avatar
emmabrice
Frequent Visitor
5 years ago
Solved

Group by with gaps in data

Hi  I cant think of a way to do this and hoping you can help.   I have data that looks like this    PersonID Effective Date End Date Job Title 2145 20/02/2017 30/04/2017 Job 1 2...
Need Help
  • Anonymous's avatar
    Anonymous
    5 years ago

    Hi  emmabrice ,

    Here are the steps you can follow：

    1. Create calculated column.

    Index = RANKX('Table',[Effective Date],,ASC,Dense)
    Column =
var _lastrow=CALCULATE(MAX('Table'[Job Title]),FILTER(ALL('Table'),[Index]=EARLIER('Table'[Index])-1))
return
IF(_lastrow=[Job Title],0,1)
    Group = SUMX(FILTER(ALL('Table'),[Index]<=EARLIER('Table'[Index])),[Column])

    2. Create calculated table.

    Table 2 =
var _summarize=
SUMMARIZE('Table',[PersonID],[Job Title],[Group],"1",MIN('Table'[Effective Date]),"2",MAX('Table'[End Date]))
return
SELECTCOLUMNS(_summarize,"PersonID",[PersonID],"Effective Date",[1],"End Date",[2],"Job Title",[Job Title])

    3. Result:

     

     

    Best Regards,

    Liu Yang

    If this post helps, then please consider Accept it as the solution to help the other members find it more quickly.

CNENFRNL's avatar
CNENFRNL
Icon for Community Champion rankCommunity Champion
5 years ago
let
    Source = Table.FromRows(Json.Document(Binary.Decompress(Binary.FromText("fZExCsMwDEWvUjwHpC9HxL5CrxCyFDIUCh3q+1O5rY0MST1ZvOcvIa9rEMwapiBMLCSMxYpoxdyK6/N2QdimrjKItVHMxPlUhTpq78DnqeIorAVqkQ5TxdFo6nKq1llTo33W41R1tKv5r1qpbeozuPDhAOoo0nevgp8qQ2p2tP6HenVIFThqG7CNiJ1BLfur1FRCa29Su5Z7eeyjGCm2RKUe3sXtDQ==", BinaryEncoding.Base64), Compression.Deflate)), let _t = ((type nullable text) meta [Serialized.Text = true]) in type table [PersonID = _t, #"Effective Date" = _t, #"End Date" = _t, #"Job Title" = _t]),
    #"Grouped Rows" = Table.Group(Source, {"PersonID", "Job Title"}, {{"ar", each _}}, 0, (x,y) => Number.From(x[PersonID]<>y[PersonID] or x[Job Title]<>y[Job Title])),
    Custom1 = Table.TransformColumns(#"Grouped Rows", {"ar", each let start=[Effective Date], end=[End Date] in [Start=start{0}, End=List.Last(end)]}),
    #"Expanded ar" = Table.ExpandRecordColumn(Custom1, "ar", {"Start", "End"}, {"Start", "End"})
in
    #"Expanded ar"