Fig. 4

Comparisons of grouping effect in SmitsData 1 (a) versus SmitsData 2 (b) using PCoA plot. The length of straight line denotes the distance of each individual point to the centroid. The centroid of each group is labeled. The ellipse denotes a 1 standard deviation to the centroid. In plot A, the blue circle denotes the PCoA score of Dry groups, while the red triangle denotes the PCoA score of Wet groups. In plot B, the blue circle denotes the PCoA score of LDEW group, while the red triangle denotes the PCoA score of LWED group