Forum Discussion
Generating row value combinations
Hi,
I am trying to generate combination of values found in row data.
Source Data
| Customer | Column2 |
| Paul | A |
| Paul | B |
| Paul | C |
| Tom | D |
| Tom | E |
| Tom | F |
| Jerry | H |
| Jerry | I |
| Jerry | J |
Expected Output
| Customer | Combined Column |
| Paul | A-B |
| Paul | A-C |
| Paul | B-C |
| Tom | D-E |
| Tom | D-F |
| Tom | E-F |
| Jerry | H-I |
| Jerry | H-J |
| Jerry | I-J |
Any suggestion on how this can be achieved either in M or DAX?
Even if the combinations are repeated, for example A-B and B-A, I am fine with that.
Thanks in advance for your help.
Anand.
This seems close, albeit with duplicates:
Table = VAR __tmpTable1 = SELECTCOLUMNS(ALL('Data'),"__Customer",[Customer],"__Column2",[Column2]) VAR __tmpTable2 = SELECTCOLUMNS(ALL('Data'),"___Customer",[Customer],"___Column2",[Column2]) VAR __tmpTable3 = FILTER(GENERATE(__tmpTable1,__tmpTable2),[__Customer]=[___Customer]&&([__Column2]>[___Column2]||[__Column2]<[___Column2])) VAR __tmpTable4 = ADDCOLUMNS(__tmpTable3,"__CombinedColumn",[__Column2]&"-"&[___Column2]) RETURN SELECTCOLUMNS(__tmpTable4,"Customer",[__Customer],"Combined Column",[__CombinedColumn])Thanks to your solution I made a minor adjustment to step3. Removed "[__Column2]>[___Column2]||". And that gave the exact result I nmeeded.
VAR __tmpTable3 =
FILTER (
GENERATE ( __tmpTable1, __tmpTable2 ),
[__Customer] = [___Customer]
&& ([__Column2] < [___Column2] )
)
9 Replies
This seems close, albeit with duplicates:
Table = VAR __tmpTable1 = SELECTCOLUMNS(ALL('Data'),"__Customer",[Customer],"__Column2",[Column2]) VAR __tmpTable2 = SELECTCOLUMNS(ALL('Data'),"___Customer",[Customer],"___Column2",[Column2]) VAR __tmpTable3 = FILTER(GENERATE(__tmpTable1,__tmpTable2),[__Customer]=[___Customer]&&([__Column2]>[___Column2]||[__Column2]<[___Column2])) VAR __tmpTable4 = ADDCOLUMNS(__tmpTable3,"__CombinedColumn",[__Column2]&"-"&[___Column2]) RETURN SELECTCOLUMNS(__tmpTable4,"Customer",[__Customer],"Combined Column",[__CombinedColumn])That's works! Excellent solution!
Thanks a lot for the prompt reply.
I can sort out the duplicate combination.
Thanks you.
Thanks to your solution I made a minor adjustment to step3. Removed "[__Column2]>[___Column2]||". And that gave the exact result I nmeeded.
VAR __tmpTable3 =
FILTER (
GENERATE ( __tmpTable1, __tmpTable2 ),
[__Customer] = [___Customer]
&& ([__Column2] < [___Column2] )
)
Not sure if this helps you or if i understand what you are attempting to achieve becuase the Combine Column values seem random.
If am wrong and they are not random i apologise.For a given Customer Paul join the first letter of their name with the value in Column2
Combination = [Column2] &"-"& LEFT( [Customer],1 )
The result will be: A-P
Hi,
Here's the M code i used
let
Source = Table.NestedJoin(Data,{"Customer"},#"Data (2)",{"Customer"},"Data (2)",JoinKind.LeftOuter),
#"Expanded Data (2)" = Table.ExpandTableColumn(Source, "Data (2)", {"Column2"}, {"Column2.1"}),
#"Added Custom" = Table.AddColumn(#"Expanded Data (2)", "Custom", each [Column2]&"-"&[Column2.1]),
#"Removed Columns" = Table.RemoveColumns(#"Added Custom",{"Column2", "Column2.1"})
in
#"Removed Columns"I downloaded the data into a table named Data.
Then from Get Source I selected Blank Query and type your M code.
But it does not create a table. I get the following:
