Figure 3: Behavioral multivariate correlation structure modulated dependently on four types of peer-social sensory contexts. a. Contextual behavior shifting of Grp (gray line) and Iso (black line) chicks distribution approximated by ellipses in a 3 dimensional space of the first and second PCA components. b. The factor loading positive vectors of the first and second PCA scores radially projected from the centered average. c. Approximated ellipse comparison between Grp and Iso distribution per context. Plane (double asterisks: p<0.01, significant as significant by Wilks’ lambda) d. Clustering analysis application combined Word’s method and PCA factor loading vector as computation with inner products. e. Statistical evaluation between four contexts mutually in either Grp or Iso distribution difference per context (* p<0.05, **p<0.1).