Comparison of methods for rhythm analysis of complex animals’ acoustic signals
Fig 6
Recurrence plots of two sequences.
No difference is indicated by white; the darker the color, the bigger the difference. Note that absolute differences are depicted and colors represent different differences in both plots, as shown in the legend. A) Echolocation click train of P. macrocephalus: a very isochronous pattern is visible by only white and light grey colors. B) The multisyllabic structure of an isolation call of S. bilineata is visible in the differences in IOIs: a subsequence of very similar IOIs is followed by an alternating sequence of two more element types.