Results of cluster analyses with two clusters.

<p>Plotted are the percent of putting a given vertebra (x-axis) into a given cluster (y-axis) in the 4 different analyses (A–D, see inset). The clustering was always 100% or 0%. Only the results of cluster 1 are plotted. The results of cluster 2 are complimentary with 0% and 100% switched. Note that three regions could be detected with the 2-cluster analysis. Note also that the border between the clusters depended on the variables analyzed.