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Table 2 PLSR modeling results of different pretreatment methods

From: Quantitative visualization of photosynthetic pigments in tea leaves based on Raman spectroscopy and calibration model transfer

  Model Pretreatment Calibration Validation Prediction
RMSEC R2C RMSECV R2CV RMSEP R2P
Car 1 Origin 0.082 0.843 0.107 0.732 0.140 0.614
2 MSC 0.080 0.847 0.106 0.738 0.134 0.650
3 SNV 0.080 0.848 0.105 0.744 0.135 0.642
4 RCF 0.122 0.653 0.142 0.532 0.131 0.662
5 WT 0.086 0.826 0.106 0.737 0.108 0.713
6 airPLS 0.123 0.646 0.140 0.549 0.199 0.227
Chl-a 7 Origin 0.463 0.870 0.577 0.798 0.900 0.597
8 MSC 0.557 0.812 0.692 0.712 0.867 0.626
9 SNV 0.834 0.650 0.898 0.600 0.886 0.609
10 RCF 0.535 0.827 0.653 0.745 0.599 0.800
11 WT 0.095 0.806 0.116 0.715 0.108 0.721
12 airPLS 0.622 0.773 0.820 0.615 1.078 0.421
Chl-b 13 Origin 0.240 0.854 0.300 0.774 0.342 0.718
14 MSC 0.284 0.784 0.339 0.695 0.366 0.677
15 SNV 0.282 0.789 0.343 0.690 0.353 0.701
16 RCF 0.295 0.810 0.347 0.717 0.330 0.734
17 WT 0.299 0.772 0.349 0.690 0.354 0.698
18 airPLS 0.247 0.844 0.340 0.707 0.385 0.644
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