Figure 2
From: Volatilomic insight of head and neck cancer via the effects observed on saliva metabolites
Analysis of altered salivary volatomic signatures by multivariate statistical tools. (a) Principal component analysis (PCA) of control and HNC subjects, (b) Orthogonal projections to latent structures discriminant analysis (OPLS-DA) of control and HNC subjects, (c) Permutation validation of OPLS-DA model. A total of 200 permutations were carried out to validate the model.
