pairwise.t.test {stats} | R Documentation |
Calculate pairwise comparisons between group levels with corrections for multiple testing
pairwise.t.test(x, g, p.adjust.method = p.adjust.methods, pool.sd = TRUE, ...)
x |
Response vector |
g |
Grouping vector or factor |
p.adjust.method |
Method for adjusting p values (see p.adjust ) |
pool.sd |
Switch to allow/disallow the use of a pooled SD |
... |
Additional arguments to pass to t.test |
Object of class "pairwise.htest"
attach(airquality) Month <- factor(Month, labels = month.abb[5:9]) pairwise.t.test(Ozone, Month) pairwise.t.test(Ozone, Month, p.adj = "bonf") pairwise.t.test(Ozone, Month, pool.sd = FALSE) detach()