hamann {partitionComparison}

Hamann Coefficient

Description

Compute the Hamann coefficient

\frac{(N_{11} + N_{00}) - (N_{10} + N_{01})}{N}

Usage

hamann(p, q)

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

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

Arguments

p

The partition P or an instance of PairCoefficients

q

The partition Q or NULL

Methods (by class)

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

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

Author(s)

Fabian Ball [e-mail]

References

Hamann U (1961). “Merkmalsbestand Und Verwandtschaftsbeziehungen Der Farinosae: Ein Beitrag Zum System Der Monokotyledonen.” Willdenowia, 2(5), 639–768. ISSN 0511-9618.

Examples

isTRUE(all.equal(hamann(new("Partition", c(0, 0, 0, 1, 1)), 
                        new("Partition", c(0, 0, 1, 1, 1))), 0.2))