ordinalseg: A function to compute Reardon multigroup ordinal segregation...

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

A function to compute Reardon multigroup ordinal segregation indices

Description

A function to compute Reardon (2009) ordinal indices

Usage

ordinalseg(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. The rows represent the nominal categories (spatial units) and the columns the ordinal categories.

Value

A vector containing Reardon's multigroup ordinal segregation indices: Lambda1 (the ordinal generalization of the information theory index), Lambda2 (the ordinal generalization of the variation ratio index), Lambda3 (the ordinal square root index), and Lambda4 (the ordinal absolute difference index)

References

Reardon S. F. (2009) Measures of ordinal segregation. Research on Economic Inequality, 17, pp. 129-155.

See Also

rankorderseg

Examples

x <- GreHSize@data[ ,3:5]
ordinalseg(x) 

x1 <- matrix(nrow = 4, ncol = 3)
x1[1,] <- c(0, 0, 30)
x1[2,] <- c(0, 20, 10)
x1[3,] <- c(10, 20 ,0)
x1[4,] <- c(30, 0 ,0)

x2 <- matrix(nrow = 4, ncol = 3)
x2[1,] <- c(0, 30, 0)
x2[2,] <- c(0, 10, 20)
x2[3,] <- c(10, 0, 20)
x2[4,] <- c(30, 0, 0)

ordinalseg(x1)
ordinalseg(x2)

OasisR documentation built on April 3, 2025, 5:58 p.m.