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\name{pairwise.t.test}
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\name{pairwise.t.test}
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\alias{pairwise.t.test}
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\alias{pairwise.t.test}
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\title{ Pairwise t tests}
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\title{ Pairwise t tests}
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\description{
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\description{
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 Calculate pairwise comparisons between group levels with corrections
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 Calculate pairwise comparisons between group levels with corrections
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 for multiple testing
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 for multiple testing
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}
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}
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\usage{
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\usage{
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pairwise.t.test(x, g, p.adjust.method = p.adjust.methods,
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pairwise.t.test(x, g, p.adjust.method = p.adjust.methods,
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                pool.sd = !paired, paired = FALSE,
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                pool.sd = !paired, paired = FALSE,
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                alternative = c("two.sided", "less", "greater"),
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                alternative = c("two.sided", "less", "greater"),
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  so \code{pool.sd} and \code{paired} cannot both be \code{TRUE}.
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  so \code{pool.sd} and \code{paired} cannot both be \code{TRUE}.
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  Only the lower triangle of the matrix of possible comparisons is being
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  Only the lower triangle of the matrix of possible comparisons is being
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  calculated, so setting \code{alternative} to anything other than
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  calculated, so setting \code{alternative} to anything other than
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  \code{"two.sided"} requires that the levels of \code{g} are ordered
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  \code{"two.sided"} requires that the levels of \code{g} are ordered
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  sensibly.
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  sensibly.
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}
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}
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\value{
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\value{
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  Object of class \code{"pairwise.htest"}
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  Object of class \code{"pairwise.htest"}
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}
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}
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\seealso{ \code{\link{t.test}}, \code{\link{p.adjust}}}
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\seealso{ \code{\link{t.test}}, \code{\link{p.adjust}}}