ExpDes (version 1.2.0)

anscombetukey: Test for homogeneity of variances of Anscombe and Tukey

Description

Performs the test for homogeneity of variances of Anscombe and Tukey (1963).

Usage

anscombetukey(resp, trat, block, glres, msres, sstrat, ssblock, residuals, fitted.values)

Arguments

resp

Numeric or complex vector containing the response variable.

trat

Numeric or complex vector containing the treatments.

block

Numeric or complex vector containing the blocks.

glres

Residual degrees of freedom.

msres

Residual Mean Square.

sstrat

Residual Sum of Squares.

ssblock

Sum of Squares for blocks.

residuals

Numeric or complex vector containing the residuals.

fitted.values

Numeric or complex vector containing the fitted values.

Value

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

References

ANSCOMBE, F. J.; TUKEY, J. W. The examination and analysis of residuals. Technometrics, 5:141-160, 1963.

RIBEIRO, R. Proposta e compara<e7><e3>o do desempenho de testes para homogeneidade de vari<e2>ncia de modelos de classi ca<e7><e3>o one-way e two-way. Inicia<e7><e3>o Cient<ed>fica. (Inicia<e7><e3>o Cient<ed>fica) - Universidade Federal de Alfenas. 2012.

See Also

See also: han, oneillmathews

Examples

# NOT RUN {
data(ex2)
attach(ex2)
rbd(trat, provador, aparencia, hvar='anscombetukey')
# }