H. de Vries
Ethology & Socio-ecology Group, Department of Comparative Physiology, Utrecht University, Utrecht, The Netherlands
At least three topics are important in the analysis of social dominance relationships between the individuals living in a social group:
I will present a recently developed test of linearity in a set of dominance relationships that contains unknown or tied relationships. Next I will briefly discuss an algorithm for finding the (near) optimal ranking of individuals based on two criteria: minimization of the number of reversals and minimization of the total strength of the reversals. If time allows I will discuss a statistical test of unidirectionality. These three methods are part of the newest version of MatMan, a program for the analysis of sociometric matrices and behavioural transition matrices. A previous version of MatMan is described in Behaviour (125:157-175, 1993).