Figure 2
PCA of NMR data and pigments’ content. Red filled circles, pigments; black filled quadrates, unassigned NMR signals; black empty rhombuses, assigned NMR signals. Insert: scores plot.
Figure 2 | Scientific Reports
PCA of NMR data and pigments’ content. Red filled circles, pigments; black filled quadrates, unassigned NMR signals; black empty rhombuses, assigned NMR signals. Insert: scores plot.
