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mechanix85's avatar
mechanix85
Helper I
9 years ago
Solved

Table.TransformColumns by criteria

Hello! How can I convert a column by a condition?   Something like this if type = №2 and type2 = true then List.Product({_, -1}) else List.Product({_, 1}) ???      
Need Help
  • v-jiascu-msft's avatar
    v-jiascu-msft
    9 years ago

    Hi mechanix85,

     

    You could try this. It worked in my test.

     

    #"Replaced Value" = 
          Table.ReplaceValue(#"Changed Type1",
          each [value],
          each if [type] = "No2" and [type2] = true then [value] * -1 else [value] * 1,
          Replacer.ReplaceValue,{"value"}),

     

     

     

     

     

     

     

     

     

     

     

     

    Best Regards!

    Dale

eziola's avatar
eziola
New Member
3 years ago

Dale! The Table.ReplaceValue solution works great! I was able to add a custom function to this solution so I can reference other columns like this:

 

=Table.ReplaceValue(

table,

each [ColumnToModify],

each fx_CustomFunction( [ColumnAsArgument1], [ColumnAsArgument2] ),

Replacer.ReplaceValue,

{"ColumnToModify"}

)

 

Question for the thread:

Does anyone know if there is a way to have Table.TransformColumns use other columns in the table as arguments to the transformation fuction? (like this...)


Table.TransformColumns(

table as table,

{{column_name, fx_CustomFunction ( [ColumnAsArgument1], [ColumnAsArgument2] ), DataType}}

)

 

Thanks for any insight on this!