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2005 Feb 04
1
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...ntain a certain number of observations for treatment A and treatment B. An example is given by the following code. >int <- as.factor(paste("[", rep(10, 11), ",", seq(20,120, by=10), ")")) >nsamA <- c(62, 83, 118, 151, 180, 201, 212, 215, 216, 217, 218) >nsamB <- c(65, 90, 128, 163, 190, 199, 209, 214, 215, 216, 218) >df0 <- data.frame(int, nsamA, nsamB) >df0 Since the interval [10, s) with n_s samples is nested in [10, t)with n_t sample for s < t, we know n_s - n_t samples exist in the interval [s, t). If this sample size of the differe...