Dear all,
I wanted to compare Bonferroni vs TukeyHSD correction over a range of groups
and group sizes, and wanted to use the function qtukey.
In the help documentation it says
qtukey(p, nmeans, df, nranges = 1, lower.tail = TRUE, log.p = FALSE)
Arguments
q
vector of quantiles.
p
vector of probabilities.
nmeans
sample size for range (same for each group).
df
degrees of freedom for s (see below).
nranges
number of groups whose maximum range is considered.
log.p
logical; if TRUE, probabilities p are given as log(p).
lower.tail
logical; if TRUE (default), probabilities are P[X � x], otherwise, P[X > x].
But when I test it, "nmeans" actually should be the number of groups, and not
"nrange" to fit with tables of the studentized range distribution.
Can that be - it should be a rather old procedure, so I wonder whether I get
something completely wrong...
Regards,
Ursula
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