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Table 3 Bayesian Information Criterion values and, in brackets, model weights for the model-based clustering based on robust principal components for the two samples.

From: Algorithmic approaches to aid species' delimitation in multidimensional morphospace

Distribution Model Middle Eocene Upper Eocene
   1 2 3 4 1 2 3 4
Spherical E-- 1574
(0.010)
1575.5
(0.004)
      
Spherical V-- 1574
(0.010)
       1649
(0.002)
Diagonal EE- 1567
(0.227)
       
Diagonal VE- 1567
(0.227)
       
Diagonal EV- 1567
(0.227)
       
Diagonal VV- 1567
(0.227)
       
Ellipsoidal EEE 1573
(0.017)
       
Ellipsoidal EEV 1573
(0.017)
     1639
(0.224)
1648
(0.003)
 
Ellipsoidal VEV 1573
(0.017)
     1637
(0.611)
1641
(0.101)
 
Ellipsoidal VVV 1573
(0.017)
     1642
(0.059)
1649
(0.002)
 
  1. Legend: Although models for up to 10 clusters were fitted, only the first three had at least one model with non-zero weight and we only show models for up to 4 clusters in the table. The model codes relate to, in order, the volume, shape and orientation of the clusters: E denotes equal and V variable such that VEV, e.g., is a model with clusters of equal shape but different volume and orientation. BIC values and weights are only given if model weights were non-zero.