pow2an:

In musto101/wilcox_R: What the package does (short line)

Usage

pow2an(x, y, ci = FALSE, plotit = TRUE, nboot = 800)

Arguments

x
y
ci
plotit
nboot

Examples

##---- Should be DIRECTLY executable !! ----
##-- ==>  Define data, use random,
##--	or do  help(data=index)  for the standard data sets.

## The function is currently defined as
function (x, y, ci = FALSE, plotit = TRUE, nboot = 800) 
{
    x <- x[!is.na(x)]
    y <- y[!is.na(y)]
    lp <- NA
    se <- yuen(x, y)$se
    gval <- NA
    dv <- seq(0, 3.5 * se, length = 15)
    for (i in 1:length(dv)) {
        gval[i] <- powest(x, y, dv[i], se)
    }
    if (!ci) {
        if (plotit) {
            plot(dv, gval, type = "n", xlab = "delta", ylab = "power")
            lines(dv, gval)
        }
    }
    if (ci) {
        print("Taking bootstrap samples. Please wait.")
        datax <- matrix(sample(x, size = length(x) * nboot, replace = TRUE), 
            nrow = nboot)
        datay <- matrix(sample(y, size = length(y) * nboot, replace = TRUE), 
            nrow = nboot)
        pboot <- matrix(NA, ncol = 15, nrow = nboot)
        for (i in 1:nboot) {
            se <- yuen(datax[i, ], datay[i, ])$se
            for (j in 1:length(dv)) {
                pboot[i, j] <- powest(x, y, dv[j], se)
            }
        }
        ll <- floor(0.05 * nboot + 0.5)
        for (i in 1:15) {
            temp <- sort(pboot[, i])
            lp[i] <- temp[ll]
        }
        plot(c(dv, dv), c(gval, lp), type = "n", xlab = "delta", 
            ylab = "power")
        lines(dv, gval)
        lines(dv, lp, lty = 2)
    }
    list(delta = dv, power = gval, lowp = lp)
  }

musto101/wilcox_R documentation built on May 23, 2019, 10:52 a.m.