odds.ratio: Create an odds ratio estimate from a 2-by-2 table of...

In samplesizeCMH: Power and Sample Size Calculation for the Cochran-Mantel-Haenszel Test

Description

Create an odds ratio estimate from a 2-by-2 table of frequencies or proportions

Usage

odds.ratio(x)

Arguments

x	A two-dimensional matrix or table containing frequencies or proportions.

Value

A numeric vector.

Author(s)

Paul W. Egeler, M.S.

Examples

# Load in Titanic data from datasets package
data(Titanic, package = "datasets")

# Get marginal table of survival by sex
marginal_table <- margin.table(Titanic, c(2,4))
marginal_table

# Compute odds ratio of marginal table
odds.ratio(marginal_table)

# Get partial tables of survival by sex, stratified by class
partial_tables <- margin.table(Titanic, c(2,4,1))
partial_tables

# Compute odds ratio of each partial table
apply(partial_tables, 3, odds.ratio)

samplesizeCMH documentation built on May 2, 2019, 6:38 a.m.