On Apr 21, 2015, at 1:05 PM, Luciano La Sala <lucianolasala at yahoo.com.ar> wrote:
Dear everyone,
The following function, taken from Quick-R, gets measures of central tendency and spread for a numeric vector x.
I can't figure out what the argument npar means in each instance.
Any tips will be most appreciated.
mysummary <- function(x, npar=TRUE, print=TRUE) {
if (!npar) {
center <- mean(x); spread <- sd(x)
} else {
center <- median(x); spread <- mad(x)
}
if (print & !npar) {
cat("Mean=", center, "\n", "SD=", spread, "\n")
} else if (print & npar) {
cat("Median=", center, "\n", "MAD=", spread, "\n")
}
result <- list(center=center,spread=spread)
return(result)
}