exact2x2tests.hypergeom: This function implements 9 methods for testing 2x2 tables and...

In RajeswaranV/vcdPlus: Summary and inference of categorical data and contingency tables

Description

This function implements 9 methods for testing 2x2 tables and outputs the p-value In hypergemetric notation out of N = m+n items r size is chosen; x is observed success

Usage

exact2x2tests.hypergeom(x, m, n, r)

Arguments

x	- Numeric value representing no of success in attribute 1.
m	- Numeric value representing Total no of attribute 1
n	- Numeric value representing Total no of attribute 2
r	- Numeric value representing Total number of success

Details

Nine methods - IRWIN, Central, Blaker.exact, MP_IR, MP_BK, Exact.less, Exact.greater, Pearson.Chisq, Pearson.Chisq.Yates.cc are implimented from exact2x2 package (7 methods) and 2 methods from base stats

Value

A dataframe with

IRWIN	Fisher exact test with 'minlike'
Central	Fisher exact test with 'central'
Blaker.exact	Blaker exact test
MP_IR	Fisher exact test with 'minlike', hypergeometric
MP_BK	Blaker exact test, hypergeometric
Exact.less	Fisher exact test if one sided is less
Exact.greater	Fisher exact test if one sided is greater
Pearson.Chisq	Pearson Chisquared test
Pearson.Chisq.Yates.cc	Pearson Chisquared test with Yates continuity correction

References

[1] Upton, G. J. (2016). Categorical Data Analysis by Example. John Wiley & Sons.

See Also

fisher.exact{blaker.exact} with additional parameters. This function calls exact2x2 functions. chisq.test with additional parameters. This function calls base stats function.

Other Test methods: Partition.table, Proportion.diagnostic.test, exact2x2tests.regular

Examples

## Example taken from -p28 Ex3.1 of Upton, G. J. (2016).
## Values are x,m,n,r: related to a hypergeometric distribution (?dhyper, for further help)
x=1; m=3; n=10; r=4
exact2x2tests.hypergeom(x,m,n,r)

RajeswaranV/vcdPlus documentation built on May 27, 2019, 7:28 a.m.