oneillmathews: Test for homogeneity of variances of ONeill and Mathews (CRD)

Description Usage Arguments Value Author(s) References See Also Examples

View source: R/oneillmathews.R

Description

oneillmathews Performs the test for homogeneity of variances of ONeill and Mathews (2000).

Usage

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oneillmathews(trat, resp, t, r)

Arguments

trat

Numeric or complex vector containing treatments.

resp

Numeric or complex vector containing the response variable.

t

Number of treatments.

r

Numeric or complex vector containing the number of replications of each treatment.

Value

Returns the p-value of ONeill and Mathews' test of homogeneity of variances and its practical interpretation for significance level of 5%.

Author(s)

Eric B Ferreira, eric.ferreira@unifal-mg.edu.br @author Denismar Alves Nogueira @author Marcos Costa de Paula @author Mateus Pimenta Siqueira Lima

References

O'NEILL, M. E.; MATHEWS, K. L. A weighted least squares approach to levene test of homogeneity of variance. Australian e New Zealand Journal Statistical, 42(1):81-100, 2000.

NOGUEIRA, D, P.; PEREIRA, G, M. Desempenho de testes para homogeneidade de variancias em delineamentos inteiramente casualizados. Sigmae, Alfenas, v.2, n.1, p. 7-22. 2013.

See Also

bartlett, layard, levene, samiuddin.

Examples

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data(ex1)
attach(ex1)
crd(trat, ig, quali = FALSE, hvar = "oneillmathews",
sigF = 0.05)

ExpDes documentation built on Oct. 5, 2021, 9:09 a.m.

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