| oneillmathews {ExpDes} | R Documentation |
Test for homogeneity of variances of ONeill and Mathews (CRD)
Description
oneillmathews Performs the test for homogeneity of
variances of ONeill and Mathews (2000).
Usage
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
data(ex1)
attach(ex1)
crd(trat, ig, quali = FALSE, hvar = "oneillmathews",
sigF = 0.05)