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

Description Usage Arguments Value References See Also Examples

View source: R/SegFunctions.R

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

1
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

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

Example output

[1] 1 1

OasisR documentation built on July 2, 2020, 3:14 a.m.

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