HTheil: A function to compute Theil's entropy segregation index

In OasisR: Outright Tool for the Analysis of Spatial Inequalities and Segregation

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)

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.

Value

a numeric vector containing Theils's entropy index value for each group

References

Theil H. (1972) Statistical decomposition analysis: with applications in the social and administrative. Amsterdam, North-Holland, 337 p.

See Also

One-group evenness indices: ISDuncan, Gini, Gorard, Atkinson, 'ISWong, ISMorrill, ISMorrillK

Between groups dissimilarity indices: DIDuncan, Gini2, DIMorrill, DIMorrillK, DIWong

Examples

x <- segdata@data[ ,1:2]
HTheil(x) 

OasisR documentation built on Aug. 30, 2023, 1:09 a.m.