*7.1.3 Canonical analysis*

According to canonical analysis, each of the extracted components from the criterion set of variables may be predicted from the corresponding components from the predictor set of variables [25–29]. The method is restricted to single response optimization. A saddle point is a stationary point that is not a local extremum in the domain of a function of two variables. The surface at such a location typically resembles a saddle that curves up in one direction or down in another (like a mountain pass). A saddle point on a contour line is typically identified by what appears to be an intersection of the contour with the line. The method is restricted to single response optimization. Additionally, there are additional crucial techniques for graphically locating the best formulation, including Pareto-optimality charts.
