Fig. 5.

Prediction results of the top two models. (a). PLSR on $\mathrm{R}\mathrm{O}{\mathrm{I}}_{\mathrm{a}\mathrm{l}\mathrm{l}}$ in VIS with SG and SNV pretreatment, (b). PLSR on $\mathrm{R}\mathrm{O}{\mathrm{I}}_{\mathrm{a}\mathrm{l}\mathrm{l}}$ in NIR with SG and SNV pretreatment.