|   | Name | Description | 
|---|
  | Transform(FuncString) | 
            Modifies the elements of this column by applying the given no-argument function to 
            each element.
             | 
  | Transform(FuncString, String) | 
            Modifies the elements of this column by applying the given unary function to 
            each element.
             | 
  | Transform(FuncString, String, String, DFStringColumn) | 
            Modifies the contents of this column by applying the given binary function
            to each element. The first parameter to the binary function is an element
            of self; the second parameter is the corresponding element of the passed 
            column.
             | 
  | Transform(FuncString, String, String, String) | 
            Modifies the contents of this column by applying the given binary function
            to each element. The first parameter to the binary function is 
            the column element; the second parameter is the passed string.
             |