Forum Discussion
Pivot Unpivot Multiple values
Hi friends - One of my data sources is a SharePoint list (created from SP forms) and is in the format below:
| Project Title | Project Manager | Risk Name 1 | Risk Category 1 | Risk Status 1 | Risk Priority 1 | Risk Name 2 | Risk Category 2 | Risk Status 2 | Risk Priority 2 | Risk Name 3 | Risk Category 3 | Risk Status 3 | Risk Priority 3 |
| Project1 | PM1 | Risk1 | Category1 | Status1 | Priority1 | Risk2 | Category2 | Status2 | Priority2 | Risk3 | Categor3 | Status3 | Priority3 |
| Project2 | PM2 | RiskP2 | Category1 | Status2 | Priority3 | ||||||||
| Project3 | PM3 | RiskP3 | Categor3 | Status1 | Priority2 | RiskP32 | Category1 | Status3 | Priority1 |
I need to modify this list in to the format below, so I can append this dataset to other datasets:
| Project Title | Project Manager | Risk Name | Risk Category | Risk Status | Risk Priority |
| Project1 | PM1 | Risk1 | Category1 | Status1 | Priority1 |
| Project1 | PM1 | Risk2 | Category2 | Status2 | Priority2 |
| Project1 | PM1 | Risk3 | Categor3 | Status3 | Priority3 |
| Project2 | PM2 | RiskP2 | Category1 | Status2 | Priority3 |
| Project3 | PM3 | RiskP3 | Categor3 | Status1 | Priority2 |
| Project3 | PM3 | RiskP32 | Category1 | Status3 | Priority1 |
How can I achieve this using Power Query or any other way in Power BI? I tried multiple ways (unpivoting, removing duplicates, pivoting) but not able to achieve desired output. Please help!
it's the #"Removed Columns" line. The pivot needs that column to identify unique rows.
So remove that step. You might want to filter out blank values from the Value column also.
Then do the pivot.
If you need to filter out rows after that then you can identify them at that stage.
8 Replies
it's the #"Removed Columns" line. The pivot needs that column to identify unique rows.
So remove that step. You might want to filter out blank values from the Value column also.
Then do the pivot.
If you need to filter out rows after that then you can identify them at that stage.
There are definitely examples of this in this forum.
The basic algorithm is :
Select the first two columns->Unpivot other columns
Split the Attribute Column to make 2 columns. The left one (call it C1) will be a limited set of values which will be the new column headings.
Pivot the C1 column using Values column in Values and "Don't Aggregate" in the Advanced Section.
For sample data as provided that will work. The real data may not have numbers after the words so may be a little more complex.
--
Good luck
Thank you for replying. I tried all those steps, when I try to pivot as the last step I'm getting Expression Error: There were too many elements in th enumeration to complete the operation. Details: [List].
Which I understand as there are multiple values for the same field which should be treated as a duplicate (for all other values except the currrent one) record as shown in the example above and create a new row, but that's not happening. Any suggestions on how to work around this error?
If you don't filter out blank values (my suggestion in previous post), then you should still see Project4 rows after pivot
Are you using sample data or the real data?
Post the 'Advanced Editor' code and I'll have a look
Thank you so much taking time to help me. I have modified the input file to reflect more acccurate situation:
Project Title Project Manager Total Risks Risk Name 1 Risk Priority 1 Risk Impact 1 Risk Status 1 Risk Name 2 Risk Priority 2 Risk Impact 2 Risk Status 2 Risk Name 3 Risk Priority 3 Risk Impact 3 Risk Status 3 Project1 PM1 3 Risk1 High Finance Closed Risk2 Medium Schedule Realized Risk3 Very High Scope Cancelled Project2 PM2 1 RiskP2 Low Staffing Open Project3 PM3 2 RiskP3 Vey High Scope Realized RiskP32 Low Finance Open Project4 PM4 0 Here's the erorr I'm getting:
Here's the M code:
let
Source = Excel.Workbook(File.Contents("C:\Users\radarla\Documents\Risks.xlsx"), null, true),
Sheet1_Sheet = Source{[Item="Sheet1",Kind="Sheet"]}[Data],
#"Promoted Headers" = Table.PromoteHeaders(Sheet1_Sheet, [PromoteAllScalars=true]),
#"Changed Type" = Table.TransformColumnTypes(#"Promoted Headers",{{"Project Title", type text}, {"Project Manager", type text}, {"Total Risks", Int64.Type}, {"Risk Name 1", type text}, {"Risk Priority 1", type text}, {"Risk Impact 1", type text}, {"Risk Status 1", type text}, {"Risk Name 2", type text}, {"Risk Priority 2", type text}, {"Risk Impact 2", type text}, {"Risk Status 2", type text}, {"Risk Name 3", type text}, {"Risk Priority 3", type text}, {"Risk Impact 3", type text}, {"Risk Status 3", type text}}),
#"Unpivoted Only Selected Columns" = Table.Unpivot(#"Changed Type", {"Risk Name 1", "Risk Priority 1", "Risk Impact 1", "Risk Status 1", "Risk Name 2", "Risk Priority 2", "Risk Impact 2", "Risk Status 2", "Risk Name 3", "Risk Priority 3", "Risk Impact 3", "Risk Status 3"}, "Attribute", "Value"),
#"Split Column by Delimiter" = Table.SplitColumn(#"Unpivoted Only Selected Columns", "Attribute", Splitter.SplitTextByEachDelimiter({" "}, QuoteStyle.Csv, true), {"Attribute.1", "Attribute.2"}),
#"Changed Type1" = Table.TransformColumnTypes(#"Split Column by Delimiter",{{"Attribute.1", type text}, {"Attribute.2", Int64.Type}}),
#"Removed Columns" = Table.RemoveColumns(#"Changed Type1",{"Attribute.2"}),
#"Pivoted Column" = Table.Pivot(#"Removed Columns", List.Distinct(#"Removed Columns"[Attribute.1]), "Attribute.1", "Value")
in
#"Pivoted Column"