PResiduals (version 1.0-1)

GKGamma: Goodman-Kruskal's $\gamma$

Description

Computes Goodman-Kruskal's $\gamma$

Usage

GKGamma(M)

Arguments

M

a matrix

Value

scon

concordance

sdis

disconcordance

gamma

a real number between -1 and 1. calculated as $\text{code}gamma=\frac{\text{code}scon-\text{code}sdis}{\text{code}scon+\text{code}sdis}$

References

Goodman LA, Kruskal WH (1954) Measures of association for cross classifications, Journal of the American Statistical Association, 49, 732-764.