Figure 4

Distributions (p.t.e) of the duration contrast obtained for all relations within the same group satisfying \(N_{\text{int}}(r)>50\) in logarithmic (a) and linear scales (b). The complete datasets have been used (i.e all days). The interaction mean-time corresponds to a value of 1. We then see for instance that the probability for an interaction to last longer than its mean-time is around 30%, but, rarely, it can exceed 10 times the mean-time