waiver

A waiver is a "flag" object, similar to <code>NULL</code>, that
  indicates the calling function should just use the
  default value.  It is used in certain functions to
  distinguish between displaying nothing (<code>NULL</code>) and
  displaying a default value calculated elsewhere
  (<code>waiver()</code>)

internal

An implementation of the grammar of graphics in R. It
        combines the advantages of both base and lattice graphics:
        conditioning and shared axes are handled automatically, and you
        can still build up a plot step by step from multiple data
        sources. It also implements a sophisticated multidimensional
        conditioning system and a consistent interface to map data to
        aesthetic attributes. See the ggplot2 website for more
        information, documentation and examples.

waiver: A waiver object.

Description

Usage

Arguments