scales (version 1.2.1)

label_ordinal: Label ordinal numbers (1st, 2nd, 3rd, etc)

Description

Round values to integers and then display as ordinal values (e.g. 1st, 2nd, 3rd). Built-in rules are provided for English, French, and Spanish.

Usage

label_ordinal(
  prefix = "",
  suffix = "",
  big.mark = " ",
  rules = ordinal_english(),
  ...
)
ordinal_english()
ordinal_french(gender = c("masculin", "feminin"), plural = FALSE)
ordinal_spanish()

Value

All label_() functions return a "labelling" function, i.e. a function that takes a vector x and returns a character vector of length(x) giving a label for each input value.

Labelling functions are designed to be used with the labels argument of ggplot2 scales. The examples demonstrate their use with x scales, but they work similarly for all scales, including those that generate legends rather than axes.

Arguments

prefix, suffix

Symbols to display before and after value.

big.mark

Character used between every 3 digits to separate thousands.

rules

Named list of regular expressions, matched in order. Name gives suffix, and value specifies which numbers to match.

...

Other arguments passed on to base::format().

gender

Masculin or feminin gender for French ordinal.

plural

Plural or singular for French ordinal.

See Also

Other labels for continuous scales: label_bytes(), label_dollar(), label_number_auto(), label_number_si(), label_parse(), label_percent(), label_pvalue(), label_scientific()

Examples

demo_continuous(c(1, 5))
demo_continuous(c(1, 5), labels = label_ordinal())
demo_continuous(c(1, 5), labels = label_ordinal(rules = ordinal_french()))

# The rules are just a set of regular expressions that are applied in turn
ordinal_french()
ordinal_english()

# Note that ordinal rounds values, so you may need to adjust the breaks too
demo_continuous(c(1, 10))
demo_continuous(c(1, 10), labels = label_ordinal())
demo_continuous(c(1, 10),
  labels = label_ordinal(),
  breaks = breaks_width(2)
)