minmaxAlpha.pFNCH: integer-endpoint of range for which...

In CooccurrenceAffinity: Affinity in Co-Occurrence Data

integer-endpoint of range for which BiasedUrn::pFNCHHypergeo() works without error

Description

This function calculates an integer-endpoint of range for which BiasedUrn::pFNCHHypergeo() works without error.

Usage

minmaxAlpha.pFNCH(x, marg)

Arguments

x	integer co-occurrence count that should properly fall within the closed interval [max(0,mA+mB-N), min(mA,mB)]
marg	a 3-entry integer vector (mA,mB,N) consisting of the first row and column totals and the table total for a 2x2 contingency table

Details

Without this function, BiasedUrn::pFNCHHypergeo() returns inconsistency message for extreme examples like: AlphInts(20,c(204,269,2016), lev=0.9, scal=10). This problem is solved within our package by restricting the range of allowed alpha to the computed (alphmin, alphmax) range.

Value

minimum and maximum of Alpha

Author(s)

Eric Slud

References

Fog, A. (2015), BiasedUrn: Biased Urn Model Distributions. R package version 1.07.

Harkness, W. (1965), “Properties of the extended hypergeometric distribution“, Annals of Mathematical Statistics, 36, 938-945.

Examples

minmaxAlpha.pFNCH(10,c(100,200,300))
minmaxAlpha.pFNCH(20,c(204,269,2016))
minmaxAlpha.pFNCH(20,c(204,269,20160))

CooccurrenceAffinity documentation built on May 4, 2023, 1:07 a.m.