Figure 10.
Plot of the objective function values with (a) the coefficients of the 2nd versus 3rd principal mode at the optimal value for the coefficient of the 1st principal mode, (b) the coefficients of the 1st versus 3rd principal mode at the optimal value for the coefficient of the 2nd principal mode, and (c) the coefficients of the 1st versus 2nd principal mode at the optimal value for the coefficient of the 3rd principal mode.