Evaluate applies a PiecewiseFuncDefn to a particular Series in a DataFrame.

RegFunc represents a regular function not split into different domain segments.

ErrUndefined indicates that the PiecewiseFuncDefn's domain is not defined for a given row.

EvaluateOptions modifies the behavior of the Evaluate function.

SubFuncDefn represents a subset of the piecewise function.

PiecewiseFuncDefn represents a piecewise function.