goodmanKruskal {partitionComparison}

Goodman & Kruskal Index

Description

Compute the index of Goodman and Kruskal

\frac{N_{11}N_{00} - N_{10}N_{01}}{N_{11}N_{00} + N_{10}N_{01}}

Usage

goodmanKruskal(p, q)

## S4 method for signature 'Partition,Partition'
goodmanKruskal(p, q)

## S4 method for signature 'PairCoefficients,missing'
goodmanKruskal(p, q)

Arguments

p

The partition P or an instance of PairCoefficients

q

The partition Q or NULL

Methods (by class)

• goodmanKruskal(p = Partition, q = Partition): Compute given two partitions

• goodmanKruskal(p = PairCoefficients, q = missing): Compute given the pair coefficients

Author(s)

Fabian Ball [e-mail]

References

Goodman LA, Kruskal WH (1954). “Measures of Association for Cross Classifications.” Journal of the American Statistical Association, 49(268), 732–764. ISSN 0162-1459, doi:10.1080/01621459.1954.10501231.

Examples

isTRUE(all.equal(goodmanKruskal(new("Partition", c(0, 0, 0, 1, 1)), 
                                new("Partition", c(0, 0, 1, 1, 1))), 1/3))