questionr (version 0.2)

prop: Global percentages of a two-way frequency table.

Description

Return the percentages of a two-way frequency table with formatting and printing options.

Usage

prop(tab, digits = 1, total = TRUE, percent = FALSE,
    drop = TRUE)

Arguments

tab

frequency table

digits

number of digits to display

total

if TRUE, add a column with the sum of percentages and a row with global percentages

percent

if TRUE, add a percent sign after the values when printing

drop

if TRUE, lines or columns with a sum of zero, which would generate NaN percentages, are dropped.

Value

• The result is an object of class table and proptab.

See Also

rprop, cprop, table, prop.table

Examples

## Sample table
data(Titanic)
tab <- apply(Titanic, c(1,4), sum)
## Percentages
prop(tab)
## Percentages with custom display
prop(tab, digits=2, percent=TRUE, total=FALSE)