Table A2.

RMSEP comparison of PLSCT and other methods, RMSEP improvement and p-values by the Wilcoxon signed rank test (α = 0.05) (the number of samples in the standard set is 30).

		PLSCT
		Corn	Wheat	Pharmaceutical Tablet
PDS(3) 1	h (%) 2	35.00575	51.77389	16.3743
	p 3	0.00717	3.17 × ${\mathbf{10}}^{\mathbf{-}\mathbf{9}}$	3.2 × ${\mathbf{10}}^{\mathbf{-}\mathbf{19}}$
PDS(5) 1	h (%)	34.99841	54.35396	15.12146
	p	0.00717	2.23 × ${\mathbf{10}}^{\mathbf{-}\mathbf{9}}$	1.78 × ${\mathbf{10}}^{\mathbf{-}\mathbf{19}}$
PDS(7) 1	h (%)	34.98937	57.02112	14.35178
	p	0.00717	2.23 × ${\mathbf{10}}^{\mathbf{-}\mathbf{9}}$	1.2 × ${\mathbf{10}}^{\mathbf{-}\mathbf{18}}$
SBC	h (%)	41.95097	87.45319	40.04516
	p	0.011286	7.56 × ${\mathbf{10}}^{\mathbf{-}\mathbf{10}}$	4.84 × ${\mathbf{10}}^{\mathbf{-}\mathbf{23}}$
CCACT	h (%)	37.18537	42.18862	16.81376
	p	0.004455	0.001161	4.37 × ${\mathbf{10}}^{\mathbf{-}\mathbf{21}}$
GLSW	h (%)	30.21822	61.34526	41.83697
	p	0.00717	8.53 × ${\mathbf{10}}^{\mathbf{-}\mathbf{10}}$	6.82 × ${\mathbf{10}}^{\mathbf{-}\mathbf{23}}$
MSC	h (%)	85.7502	56.43832	24.21448
	p	0.000531	1.57 × ${\mathbf{10}}^{\mathbf{-}\mathbf{6}}$	1.51 × ${\mathbf{10}}^{\mathbf{-}\mathbf{18}}$
Recalibration2	h (%)	8.610493	69.98222	23.82937
	p	0.017378	0.000231	3.05 × ${\mathbf{10}}^{\mathbf{-}\mathbf{23}}$
Recalibration	h (%)	2.26298	−24.4164	2.908651
	p	0.876722	9.06 × ${10}^{-5}$	0.000198

¹ The number in brackets stands for window size of PDS method; ² h: the RMSEP improvement; ³ p: p-value by Wilcoxon signed rank test.