Gini: A function to compute Spatial Gini's segregation index

Description Usage Arguments Value References See Also Examples

View source: R/SegFunctions.R

Description

The spatial version of the Gini index can be derived from the Lorenz curve as the area between the segregation curve and the diagonal.

Usage

1
Gini(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 the Gini's segregation index value for each group

References

Duncan O. D. and Duncan B. (1955) A Methodological Analysis of Segregation Indexes. American Sociological Review 41, pp. 210-217

See Also

Other one-group evenness indices: ISDuncan, Atkinson, Gorard, HTheil, 'ISWong, ISMorrill, ISMorrillK

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

Examples

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

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

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