ggtern (version 1.0.1.3)

validate_element: Overloaded ggplot2 functions

Description

The source of the following functions originate from ggplot2, however, minor patches were required in order for them to function under the ggplot2 framework. Patches were mainly to do with handling the new theme elements and heirarchies.

Usage

validate_element(el, elname)
  theme_update(...)
  opts(...)
  plot_theme(x)
  theme_get()
  theme_set(new)
  update_theme(oldtheme, newtheme)
  calc_element(element, theme, verbose = FALSE)
  combine_elements(e1, e2)
  add_ggplot(p, object, objectname)

Arguments

el

the element

elname

the element name

x

gg object

oldtheme

previous theme object

newtheme

new theme object

e1

first element

e2

second element

p

plot

object

to add

objectname

name of obeject

...

named list of theme settings

new

new theme (a list of theme elements)

element

The name of the theme element to calculate

theme

A theme object (like theme_grey())

verbose

If TRUE, print out which elements this one inherits from

Details

validate_element is a function which checks the validity of a given theme element, against the elements table. Since the .elements_tree is an internal function, which is not exported, and modifications could not be made, a new (and equivalent) .element_tree is created within ggtern.

plot_theme is a local copy of the method that determines the net theme between a plot and the current theme

"%+replace%" replace operator

update_theme is a local copy of a ggplot2 function, which copies elements from the new theme into an old theme.

combine_elements is a local copy of method that combines two theme elements

"%+%" add operator no change other than exporting from this namespace

add_ggplot is a local copy of method that adds elements to a gg object.

See Also

calc_element