rvCoefficient {partitionComparison}

RV Coefficient

Description

Compute the RV coefficient

\frac{n + 2N_{11}(p)}{\sqrt{(2N_{21}(p) + n) (2N_{12}(p) + n)}}

Usage

rvCoefficient(p, q)

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

## S4 method for signature 'PairCoefficients,missing'
rvCoefficient(p, q = NULL)

Arguments

p

The partition P or an instance of PairCoefficients

q

The partition Q or NULL

Methods (by class)

• rvCoefficient(p = Partition, q = Partition): Compute the RV coefficient given two partitions

• rvCoefficient(p = PairCoefficients, q = missing): Compute the RV coefficient given the pair coefficients

Author(s)

Fabian Ball [e-mail]

References

Robert P, Escoufier Y (1976). “A Unifying Tool for Linear Multivariate Statistical Methods: The RV- Coefficient.” Journal of the Royal Statistical Society. Series C (Applied Statistics), 25(3), 257–265. ISSN 00359254.

Youness G, Saporta G (2004). “Some Measures of Agreement between Close Partitions.” Student, 51, 1–12.

Examples

isTRUE(all.equal(rvCoefficient(new("Partition", c(0, 0, 0, 1, 1)), 
                               new("Partition", c(0, 0, 1, 1, 1))), 9/13))