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. 2026 Jul 13;17:1854406. doi: 10.3389/fpls.2026.1854406

Table 3.

Performance metrics of the final multiple linear regression model predicting the quantum yield of photosystem II (ΦPSII).

Datasets RMSE R2 MAE
Training 0.083 0.56 0.067
Testing 0.080 0.60 0.065

Values represent root mean square error (RMSE), coefficient of determination (R2), and mean absolute error (MAE) for both training and testing datasets.