lawstat (version 3.3)

cd: Coefficient of Dispersion -- a Measure of Relative Variability

Description

Measure of relative inequality (or relative variation) of the data. Coefficient of dispersion (CD) is the ratio of the mean absolute deviation from the median (MAAD) to the median of the data. NAs from the data are omitted. See Gastwirth_1988v1;textuallawstat and Bonett_Seier_2006;textuallawstat.

Usage

cd(x)

Arguments

x

a numeric vector of data values.

Value

The coefficient of dispersion.

References

See Also

gini.index, j.maad

Examples

# NOT RUN {
## The Baker v. Carr Case: one-person-one-vote decision. 
## Measure of Relative Inequality of Population data in 33 districts 
## of the Tennessee Legislature in 1900 and 1972. See 
## popdata (see Gastwirth, 1988).

data(popdata)
cd(popdata[,"pop1900"])
cd(popdata[,"pop1972"])

# }