Fig. 5
From: Research on anthracnose grade of Camellia oleifera based on the combined LIBS and THz technology

PLS-DA classification diagram of Camellia oleifera leaves detected by different spectra, a LIBS-THz modeling set, b LIBS-THz prediction set, c LIBS-THz-CARS modeling set, d LIBS-THz-CARS prediction set, e THz(CARS)-LIBS(CARS) modeling set, f THz(CARS)-LIBS(CARS) prediction set