abbrv_large: Abbreviated labels for large numbers.
In gmega/playaxr: Create R plots conforming to the Playax standards.

Description Usage Details Examples

View source: R/abbrv_large.R

'abbrv_large' takes a numeric vector and returns a character vector containing abbreviated names of the form '[DDD].[S+]C' where '[DDD]' and [S+] is a variable prefix of the of the original number containing its most significant digits, and 'C' an abbreviation which summarises its magnitude. In addition, 'abbrv_large' may add decimal places to the abbreviated number to disambiguate them from other numbers close in the scale.

1	abbrv_large(x, decimals = NULL)

For example, '1e6' will be typically mapped into '1M', and '123845' to '123k'. However, 'abbrv_large' may add decimal places if more than one number in the input maps into the same abbreviated representation. The number of decimal places kept is the minimum required to disambiguate all of the abbreviated representations (see examples).

Numbers are _truncated_, not rounded, into their large number representation.

 # All abbreviations are unique, do not add decimal places.
 abbrv_large(c(123456, 28475777, 125, 1.3, 0.1))
 # [1] "123k" "28M"  "125"  "1"    "0"

 # Adds one decimal place to the `k` range to disambiguate 123.4k from 123.5k.
 abbrv_large(c(123456, 123556, 28475777, 125, 1.3, 0.1, 1))
 # [1] "123.4k" "123.5k" "28M"    "125"    "1"      "0"