count.fourfold {diffdepprop}

R Documentation

Counts the numbers of discordance and concordance of two tests

Description

In the case two dependent tests shall be compared a fourfold table is mostly needed. count.fourfold counts the numbers of concordance and discordance of both tests.

Usage

count.fourfold(data, col.test1, col.test2)

Arguments

data	name of the data
col.test1	number of column representing the first test
col.test2	number of column representing the second test

Value

A vector containing the four entries of the fourfold table, row wise listed

Author(s)

Daniela Wenzel, Antonia Zapf

Examples

# create a data set with zero and ones for each of both tests
v1=c(rep(1,10),rep(0,4),rep(1,8),rep(0,8))
v2=c(rep(0,10),rep(1,5),rep(0,5),rep(1,10))
n=c(seq(1,30,1))
new=cbind(n,v1,v2)
# count the number of concordance and discordance
count.fourfold(new,1,2)

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