Research Article
Raman Spectroscopy in Colorectal Cancer Diagnostics: Comparison of PCA-LDA and PLS-DA Models
Figure 3
Loading plot of PCA components (PC) and PLS components (LV) in the each model calculated from the Raman spectra of colorectal tissues. Each loading is shifted vertically for better visualization. The broken interval (-//-) indicates the region of 2000–2500 cm−1, which does not contain much tissue-related biochemical information.