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. 2013 Feb 1;13(2):1872–1883. doi: 10.3390/s130201872

Table 2.

The parameters of RMSEP and R2 in the four models.

Models Element Variables No. R2 RMSEP Bias
PLS Fe 6 0.3820 26.1431 −9.3674
Zn 5 0.5800 6.9637 2.2320
PCA-LS-SVM Fe 6 0.4012 23.9920 −7.8789
Zn 6 0.6109 6.5308 2.0571
LV-LS-SVM Fe 6 0.4070 23.3845 −7.4975
Zn 5 0.6067 6.4869 2.2336
ICA-LS-SVM Fe 6 0.6189 20.6510 −12.1549
Zn 6 0.6731 5.5919 1.5232