How to use ChangeDataTypeTransformation()?

[Santiago Villa Cardenas]

I am currently attempting to programmatically perform a data type transformation but I am having problems with the implementation of the function. This is the documentation:

public ChangeDataTypeTransformation(

IEnumerable<DataColumnSignature> columns,

DataType newDataType

)

How does this apply to python and how to pass the parameters? Specially the columns parameter which is requiring me to pass a IEnumerable type but not sure how this applies to python.

Thank you

[Gaia Paolini]

my reply to your question

https://community.spotfire.com/s/question/0D54z00008QWf0mCAD/data-type-change

uses an ExpressionTransformation. Hope it helps