Figure 3
Model performance and robustness based on OR-Cubist and DT-Cubist for tea quality-related metabolites. The ratio of performance to deviation (RPD, A) and coefficient of determination (R2, B) were applied to evaluate the accuracy of each model. A stratified sampling approach for modelling was repeated 100 times to obtain robust results. Figure are plots of the RPD and R2 values in each repeat. Orange and blue lines indicate RPD values of 1.4 and 2.0, respectively, as accuracy thresholds. Statistical tests for significant differences by two-way ANOVA are shown on the right side of the Figure. Figures were visualized by the R package “ggplot2” ver. 3.3.2.
