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. 2015 Sep 2;15(9):22128–22150. doi: 10.3390/s150922128

Figure 9.

Figure 9

Model (A) vs. model (B) performance: The test sets for the PLS models are indicated, while all other runs served as model validation sets. A horizontal dashed line indicates 33% CVRMSE. Small differences in final CVRMSE calculation are possible when minute-by-minute records of capacitance spectra are aligned with the daily offline VCC measurements by various techniques [46,47,48].