Table 3 Bootstrapping results (100 iterations) showing mean R2 ± SD for each model.

From: Integrating chemical modification pathways and machine learning for optimization of nitrate removal by rapeseed (Brassica napus L.) biochar

Model

Bootstrapping (R2 ± SD)

RMSE

RF

0.931 ± 0.041

0.067 ± 0.019

SVR

0.924 ± 0.044

0.070 ± 0.020

LR

0.561 ± 0.838

0.148 ± 0.095