Table 1. Statistics of inter-vector distances, and cophenetic correlation coefficients and ultrametric triangle fractions for Eurobarometer survey data (N = 600), with the split ballot question handled by merging versions so that F = 116.

description	mean intervector distance	sd of intervector distance	cophenetic corr. coeff.	ultrametric tri. frac.
Real	0.585	0.076	0.316	0.066
Permuted	0.585	0.041	0.344	0.095
Random	0.798	0.037	0.028	0.099
Simulated	0.909	0.030	0.093	0.128
Simulated permuted	0.909	0.027	0.034	0.137