HTheil: A function to compute Theil's entropy segregation index
Description
The entropy index (also called information index) measures
departure from evenness by assessing each spatial unit deviation from the
entropy in the area.
Usage
HTheil (x)
Value
a numeric vector containing Theils's entropy index value for
each group
Arguments
x
- an object of class matrix (or which can be coerced to that class),
where each column represents the distribution of a group within
spatial units. The number of columns should be greater than 1 (at least 2
groups are required). You should not include a column with total
population, because this will be interpreted as a group.
References
Theil H. (1972) Statistical decomposition analysis: with
applications in the social and administrative. Amsterdam, North-Holland, 337 p.