leveneTest: Levene's test

In nuno-agostinho/psichomics: Graphical Interface for Alternative Splicing Quantification, Analysis and Visualisation

Levene's test

Description

Performs a Levene's test to assess the equality of variances

Usage

leveneTest(x, g, centers = median)

Arguments

x	Numeric vector or list of numeric vectors: non-numeric elements of a list will be coerced with a warning
g	Vector or factor: groups of elements in x (ignored with a warning if x is a list)
centers	Function used to calculate how much values spread; for instance, median (default) or mean

Details

The implementation of this function is based on car:::leveneTest.default with a more standard result.

Value

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

statistic	the value of the test statistic with a name describing it.
p.value	the p-value for the test.
method	the type of test applied.
data.name	a character string giving the names of the data.

Examples

vals <- sample(30, replace=TRUE)
group <- lapply(list("A", "B", "C"), rep, 10)
group <- unlist(group)
psichomics:::leveneTest(vals, group)

## Using Levene's test based on the mean
psichomics:::leveneTest(vals, group, mean)

nuno-agostinho/psichomics documentation built on Feb. 11, 2024, 11:16 p.m.