bartlett function

Test for Homogeneity of Variances: Bartlett

bartlett Performs the test for homogeneity of variances of Bartlett (1937).

bartlett(trat, resp, t, r)

Arguments

• trat: Numeric or complex vector containing the 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.

Returns

Returns the p-value of Bartlett's test of homogeneity of variances and its practical interpretation for 5% of significance.

Examples

data(ex1)
attach(ex1)
crd(trat, ig, quali = FALSE, hvar='bartlett', sigF = 0.05)

References

BARTLETT, M. S. Properties of sufficiency and statistical tests. Proceedings of the Royal Statistical Society - Serie A, 60:268-282, 1937.

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

See Also

levene, oneillmathews, samiuddin

Author(s)

Eric B Ferreira, eric.ferreira@unifal-mg.edu.br

Denismar Alves Nogueira

Marcos Costa de Paula

Mateus Pimenta Siqueira Lima