A transformation encapsulates a transformation and its inverse, as well as the information needed to create pleasing breaks and labels. The breaks function is applied on the transformed range of the range, and it's expected that the labels function will perform some kind of inverse transformation on these breaks to give them labels that are meaningful on the original scale.

trans_new(name, transform, inverse, breaks = extended_breaks(),
  minor_breaks = regular_minor_breaks(), format = format_format(),
  domain = c(-Inf, Inf))

Arguments

name

transformation name

transform

function, or name of function, that performs the transformation

inverse

function, or name of function, that performs the inverse of the transformation

breaks

default breaks function for this transformation. The breaks function is applied to the raw data.

minor_breaks

default minor breaks function for this transformation.

format

default format for this transformation. The format is applied to breaks generated to the raw data.

domain

domain, as numeric vector of length 2, over which transformation is valued

See also