search for: bal1

...ct is a mean over n subunits, minus the grand mean; the grand mean is a mean over mn units.] Often, m is large enough that the difference is of no consequence. Also, the SEs of effects are commonly of little more than academic interest. But, if given at all, they should be correct. Example "bal1" <- structure(list(y = c(3.1, 2.4, 2.2, 2.3, 1.9, 0.9, 1.8, 1.1), trt = structure(as.integer(c(1, 1, 2, 2, 3, 3, 4, 4)), .Label = c("a", "b", "c", "d"), class = "factor")), .Names = c(&qu...