position_rescale: Rescale x or y onto new range in margin

Description

Take the range of the specified axis and rescale it to a new range about a midpoint. By default the range will be calculated from the associated main plot axis mapping. The range will either be the resolution or 5% of the axis range, depending if original data is discrete or continuous respectively. Each layer called with position_rescale will possess an instance value that indexes with axis rescale. By default, each position_rescale will dodge the previous call unless instance is specified to a previous layer.

Usage

position_rescale(
  rescale = "y",
  midpoint = NULL,
  range = NULL,
  location = NULL,
  instance = NULL
)
position_yrescale(
  rescale = "y",
  midpoint = NULL,
  range = NULL,
  location = NULL,
  instance = NULL
)
position_xrescale(
  rescale = "x",
  midpoint = NULL,
  range = NULL,
  location = NULL,
  instance = NULL
)

Value

a ggproto object inheriting from 'Position' and can be added to a ggplot

Format

An object of class PositionRescale (inherits from Position, ggproto, gg) of length 10.

Arguments

rescale: character value of "x" or "y". specifies which mapping data will be rescaled
midpoint: default set to NULL. Center point about which the rescaled x/y values will reside.
range: default set to NULL and auto generates from main mapping range. Specifies the size of the rescaled range.
location: specifies where position_rescale should try to place midpoint. If midpoint is specified, location is ignored and placed at the specified location.
instance: integer that indexes rescaled axis calls. instance may be specified and if a previous layer with the same instance exists, then the same midpoint and range are used for rescaling. x and y are indexed independently.