cochran.test {onewaytests}

Cochran Test

Description

cochran.test performs Cochran test.

Usage

cochran.test(formula, data, alpha = 0.05, na.rm = TRUE, verbose = TRUE)

Arguments

formula

a formula of the form lhs ~ rhs where lhs gives the sample values and rhs the corresponding groups.

data

a tibble or data frame containing the variables in formula.

alpha

the level of significance to assess the statistical difference. Default is set to alpha = 0.05.

na.rm

a logical value indicating whether NA values should be stripped before the computation proceeds.

verbose

a logical for printing output to R console.

Value

A list with class "owt" containing the following components:

statistic

the Cochran test statistic.

parameter

the parameter(s) of the approximate chi-squared distribution of the test statistic.

p.value

the p-value of the test.

alpha

the level of significance to assess the statistical difference.

method

the character string "Cochran Test".

data

a data frame containing the variables in which NA values (if exist) are removed.

formula

a formula of the form lhs ~ rhs where lhs gives the sample values and rhs the corresponding groups.

Author(s)

Merve Kasikci

References

Cochran, W.G. (1937). Problems Arising in the Analysis of a Series of Similar Experiments. Supplement to Journal of the Royal Statistical Society, 4:1, 102-118.

Examples

library(onewaytests)

cochran.test(Sepal.Length ~ Species, data = iris)

out <- cochran.test(Sepal.Length ~ Species, data = iris)
paircomp(out)