alternative to jackknife barplot of http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0061048

alternative to regular squared residual barplot (jackknife analysis of PACo) See http://journals.plos.org/plosone/article?id=10.1371/journal.pone.0061048

Demostration of how to mark congruent and incongruent links in a tanglegram.

simulation for cophylogenetic analysis. Similar to sim 3 in Legendre et al. (2002) - parafit paper