add_article: Append a/an to word

In rjake/headliner: Compose Sentences to Describe Comparisons

Append a/an to word

Description

Append a/an to word

Usage

add_article(x)

Arguments

x	string or numeric value

Details

This function uses crude logic to append 'a' or 'an' to numbers and phrases.

• words that start with aeiou

• negative numbers always start with 'a', ex: 'a -3' or 'a -8'

• decimals always start with 'a' ex: 0.4 is usually pronounced 'a zero point four' or 'a point four'

• numbers starting with 8 are always 'an'

• if the integer that comes after thousand or million is 11 or 18 then 'an'

  • 18,000 becomes 18 and that becomes 'an 18'

• if the integer that comes after thousand or million is in 1, 10, 12, 13, 14, 15, 16, 17, 19 then 'a'

  • 15,500 becomes 15 and that becomes 'a 15'

• otherwise 'a'

Value

Returns a vector the same length as the input.

Examples

add_article("increase")

add_article("decrease")

add_article(c(1, 8, 10, 11, 18, 20, 80))

add_article(18123)

stats::setNames(
  add_article(1.8 * 10^(1:7)),
  prettyNum(1.8 * 10^(1:7), big.mark = ",")
)

rjake/headliner documentation built on Jan. 5, 2023, 10:41 a.m.