Some new measures of the dispersion of dependency in a situation-resource grid

New measures for the dispersion of dependency in a situation-response grid are derived from information theory. These can be computed for any grid con taining dependency data, and they lie in a standardized zero-one range. The bivariate counterpart, the uncertainty coefficient, can be used to show th e relationship between situations and resources and differentiate between d ilated and healthy dispersion of dependency. Seriation, a technique which r eorders such grids to highlight similarity in dependency profiles, also pro duces a differentiating index, the correlation ratio.