snk function

Multiple comparison: Student-Newman-Keuls test

snk Performs the test of SNK, for multiple comparison of means.

snk(y, trt, DFerror, SSerror, alpha = 0.05, group = TRUE, main = NULL)

Arguments

• y: Numeric or complex vector containing the response variable.
• trt: Numeric or complex vector containing the treatments.
• DFerror: Error degrees of freedom.
• SSerror: Error sum of squares.
• alpha: Significance level.
• group: TRUE or FALSE.
• main: Title.

Returns

Returns the multiple comparison of means according to the test of SNK.

Examples

data(ex1)
attach(ex1)
crd(trat, ig, quali = TRUE, mcomp = "snk", sigT = 0.05)

See Also

scottknott, duncan, lsd, lsdb, ccboot, tukey, ccF.

Author(s)

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

Denismar Alves Nogueira

Portya Piscitelli Cavalcanti