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. 2016 Jun 10;6:27790. doi: 10.1038/srep27790

Figure 4. Regression coefficients (RCs) of each wavelength in PLSR based on the whole spectra.

Figure 4

(a) RCs of each wavelength for Chl-HSI; (b) RCs of each wavelength for Car-HSI. The local extremum values of regression coefficient represent the importance of each wavelength. The selected important wavelengths which carried effective information were employed to establish the regression models to improve the speed of the modelling.