Gorard's index is an alternative to
index, which measures the dissimilarity between the spatial
distribution of a group and the total population.
- an object of class matrix (or which can be coerced to that class), where each column represents the distribution of a population group, within spatial units. The number of columns should be greater than 1 (at least 2 population groups are required). You should not include a column with total totals because this will be interpreted as a population group
a numeric vector containing the Gorard's segregation index value for each population group
Gorard S. (2000) Education and Social Justice. Cardiff, University of Wales Press