arch.univariate.volatility.VolatilityProcess.bounds¶ abstract VolatilityProcess.bounds(resids: ndarray) → list[tuple[float, float]][source]¶ Returns bounds for parameters Parameters:¶ resids: ndarray¶Vector of (approximate) residuals Returns:¶ bounds – List of bounds where each element is (lower, upper). Return type:¶ list[tuple[float,float]]