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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})
???
Solved! Go to Solution.
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
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!
Hi,
Dale's solution does work for me. However I was wondering if there is a way to transform multiple columns in one step? Right now I have to repeat on every column I wish to transform.
Thanks.
Carl
Hi @mechanix85,
You could try this formula.
= if [type] = "No2" and [type2] = true then [value] * -1 else [value] * 1
Notes: M is case sensitive.
Best Regards!
Dale
@v-jiascu-msft, Yes, i can do this, but I do not want to add new column... Table.TransformColumns can do it without new column, but I can not understand how to add a condition
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
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