Nothing
medIQR <- function(x, ...) UseMethod("medIQR")
medIQR.default <- function(x, na.rm = TRUE, ...) {
qq <- stats::quantile(x, c(0.50, 0.25, 0.75), na.rm = na.rm, ...)
structure(qq,
names = c("Median", "Q1", "Q3"),
class = "medIQR") # how about EstInterval? smry?
}
medIQR.formula <- function(formula,
data = NULL, ...,
subset, na.action = NULL,
overall = FALSE,
overall.label = "Overall") {
if (missing(formula) || (length(formula) != 3))
stop("'formula' missing or incorrect")
m <- match.call(expand.dots = FALSE)
if (is.matrix(eval(m$data, parent.frame())))
m$data <- as.data.frame(data)
m$... <- m$overall <- m$overall.label <- NULL
m$na.action <- na.action
require(stats, quietly = TRUE)
m[[1L]] <- as.name("model.frame")
mf <- eval(m, parent.frame())
response <- attr(attr(mf, "terms"), "response")
s <- split(mf[[response]], mf[-response])
if(overall) {
if(any(names(s) == overall.label))
stop(sQuote(overall.label), " is an existing level")
s <- c(Overall = list(unlist(s)), s)
}
structure(sapply(s, FUN = medIQR, ...),
class = "medIQR")
}
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