fagerMcGowan {partitionComparison}

Fager & McGowan Index

Description

Compute the index of Fager and McGowan

\frac{N_{11}}{\sqrt{N_{21}N_{12}}} - \frac{1}{2\sqrt{N_{21}}}

Usage

fagerMcGowan(p, q)

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

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

Arguments

p

The partition P or an instance of PairCoefficients

q

The partition Q or NULL

Methods (by class)

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

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

Author(s)

Fabian Ball [e-mail]

References

Fager EW, McGowan JOHNA (1963). “Zooplankton Species Groups in the North Pacific Co-Occurrences of Species Can Be Used to Derive Groups Whose Members React Similarly to Water-Mass Types.” Science, 140(3566), 453–460.

Examples

isTRUE(all.equal(fagerMcGowan(new("Partition", c(0, 0, 0, 1, 1)), 
                              new("Partition", c(0, 0, 1, 1, 1))), 0.25))