Error when converting a String Column to Floating Decimal

I am trying to convert a string column to floating decimal, but I get the below error. How can I fix?

Answers

  • You need to remove all non-numerical characters first.

    In a formula tile you can do something like this:

    REGEXP_REPLACE(`field`, '[^0-9.]', '')
    

    Then feed that into the Alter Columns tile

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