Selection of spectral pretreatment

r2

RMSEC

RMSEP

RMSEV

Constant

0.962

0.417

0.343

0.473

SNV

0.940

0.519

2.580

0.493

MSC

0.886

0.708

3.485

0.674

First Derivative

0.909

0.311

0.331

0.568

Second Derivative

0.972

0.147

0.162

0.433

SNV+ Second Derivative

0.922

0.414

0.449

0.588

MSC+ Second Derivative

0.901

0.662

3.492

0.751

Constant

0.962

0.417

0.343

0.473