freq: Generate frequency tables.

In questionr: Functions to Make Surveys Processing Easier

Generate frequency tables.

Description

Generate and format frequency tables from a variable or a table, with percentages and formatting options.

Usage

freq(
  x,
  digits = 1,
  cum = FALSE,
  total = FALSE,
  exclude = NULL,
  sort = "",
  valid = !(NA %in% exclude),
  levels = c("prefixed", "labels", "values"),
  na.last = TRUE
)

Arguments

x	either a vector to be tabulated, or a table object
digits	number of digits to keep for the percentages
cum	if TRUE, display cumulative percentages
total	if TRUE, add a final row with totals
exclude	vector of values to exclude from the tabulation (if x is a vector)
sort	if specified, allow to sort the table by increasing ("inc") or decreasing ("dec") frequencies
valid	if TRUE, display valid percentages
levels	the desired levels for the factor in case of labelled vector (labelled package must be installed): "labels" for value labels, "values" for values or "prefixed" for labels prefixed with values
na.last	if TRUE, NA values are always be last table row

Value

The result is an object of class data.frame.

See Also

table, prop, cprop, rprop

Examples

# factor
data(hdv2003)
freq(hdv2003$qualif)
freq(hdv2003$qualif, cum = TRUE, total = TRUE)
freq(hdv2003$qualif, cum = TRUE, total = TRUE, sort ="dec")

# labelled data
data(fecondite)
freq(femmes$region)
freq(femmes$region, levels = "l")
freq(femmes$region, levels = "v")

questionr documentation built on Feb. 16, 2023, 10:14 p.m.