Fig. 8

Visual assessment of the reduced sixth RSM model’s accuracy in predicting Et values; (a) Regression graph, (b) ARD-based polar chart, (c) MOD graph, and (d) Violin plot.

Visual assessment of the reduced sixth RSM model’s accuracy in predicting Et values; (a) Regression graph, (b) ARD-based polar chart, (c) MOD graph, and (d) Violin plot.