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. 2023 May 22;20:21. doi: 10.1186/s12989-023-00530-0

Table 3.

ET Nano-QSTR model performance for unseen subset

Model Subset R2ext Q2F1 Q2F2 RMSE MAE CCC
ET Unseen 0.927 0.929 0.925 4.375 3.528 0.961

ET: extra-trees regressor; R2ext: determination coefficient for external validation; Q2F1 and Q2F2: determination coefficient based-metrics for external validation; RMSE: root-mean-square error; MAE: mean absolute error; CCC: coefficient of concordance.