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Official Journal of the Japan Wood Research Society

Table 2 The results of the partial least-squares (PLS) regression model for estimating CNF addition ratio using SNV-NIR spectra

From: Prediction of cellulose nanofibril (CNF) amount of CNF/polypropylene composite using near infrared spectroscopy

Data

Calibration set

Test set

Factor

R2

SECV

RPDV

R2

SEP

RPDP

CNF addition ratio (wt %)

3

0.96

0.89

5.42

0.97

0.66

6.55

  1. Factor: the optimum number of PLS factors, R2: coefficient of determination, SECV: standard error of cross-validation, RPDV: ratio of performance to standard deviation of cross-validation, SEP: standard error of prediction, RPDP: ratio of performance to standard deviation of prediction