modus: Modus of a variable

In kthorstmann/horst: Functions for the processing of questionnaire data

Description

Get the modus of a variable, i. e. the value that is most frequent in an variable (can be numeric and character)

Usage

modus(variable, useNA = "no", equal.dist = 99)

Arguments

variable	The variable containing
useNA	Should NAs be used? Will be passed on to table. Can be either "no", "ifany", or "always".
equal.dist	If all entries are equally often, this value will be returned as output. Default is to 99.

Details

If two (not all) values are equally often in the variable, the first value of these will be returned. A message is issued.

Value

The modus will be returned.

Examples

letter_samp <- sample(letters, 50, TRUE)
modus(letter_samp)
##
set.seed(9)
m <- matrix(sample(1:5, 30, replace=TRUE), 10, 3, byrow=TRUE)
m[c(23, 12)] <- NA
m[c(4)] <- 1 # no variance
data <- as.data.frame(m)
apply(data, 1, modus)
##
# message, since 2 and 3 are equally often.
modus(c(2, 2, 2, 3, 3, 3, 4, 4))

kthorstmann/horst documentation built on May 20, 2019, 7:04 p.m.