margin

0th

Percentile

Theme elements

In conjunction with the theme system, the element_ functions specify the display of how non-data components of the plot are a drawn.

  • element_blank: draws nothing, and assigns no space.
  • element_rect: borders and backgrounds.
  • element_line: lines.
  • element_text: text.

rel() is used to specify sizes relative to the parent, margins() is used to specify the margins of elements.

Usage
margin(t = 0, r = 0, b = 0, l = 0, unit = "pt")
element_blank()
element_rect(fill = NULL, colour = NULL, size = NULL, linetype = NULL, color = NULL, inherit.blank = FALSE)
element_line(colour = NULL, size = NULL, linetype = NULL, lineend = NULL, color = NULL, arrow = NULL, inherit.blank = FALSE)
element_text(family = NULL, face = NULL, colour = NULL, size = NULL, hjust = NULL, vjust = NULL, angle = NULL, lineheight = NULL, color = NULL, margin = NULL, debug = NULL, inherit.blank = FALSE)
rel(x)
Arguments
t, r, b, l
Dimensions of each margin. (To remember order, think trouble).
unit
Default units of dimensions. Defaults to "pt" so it can be most easily scaled with the text.
fill
Fill colour.
colour, color
Line/border colour. Color is an alias for colour.
size
Line/border size in mm; text size in pts.
linetype
Line type. An integer (0:8), a name (blank, solid, dashed, dotted, dotdash, longdash, twodash), or a string with an even number (up to eight) of hexadecimal digits which give the lengths in consecutive positions in the string.
inherit.blank
Should this element inherit the existence of an element_blank among its parents? If TRUE the existence of a blank element among its parents will cause this element to be blank as well. If FALSE any blank parent element will be ignored when calculating final element state.
lineend
Line end Line end style (round, butt, square)
arrow
Arrow specification, as created by arrow
family
Font family
face
Font face ("plain", "italic", "bold", "bold.italic")
hjust
Horizontal justification (in [0, 1])
vjust
Vertical justification (in [0, 1])
angle
Angle (in [0, 360])
lineheight
Line height
margin
Margins around the text. See margin for more details. When creating a theme, the margins should be placed on the side of the text facing towards the center of the plot.
debug
If TRUE, aids visual debugging by drawing a solid rectangle behind the complete text area, and a point where each label is anchored.
x
A single number specifying size relative to parent element.
Value

An S3 object of class element, rel, or margin.

Aliases
  • margin
  • element_blank
  • element_rect
  • element_line
  • element_text
  • rel
Examples
library(ggplot2) plot <- ggplot(mpg, aes(displ, hwy)) + geom_point() plot + theme( panel.background = element_blank(), axis.text = element_blank() ) plot + theme( axis.text = element_text(colour = "red", size = rel(1.5)) ) plot + theme( axis.line = element_line(arrow = arrow()) ) plot + theme( panel.background = element_rect(fill = "white"), plot.margin = margin(2, 2, 2, 2, "cm"), plot.background = element_rect( fill = "grey90", colour = "black", size = 1 ) )
Documentation reproduced from package ggplot2, version 2.2.1, License: GPL-2 | file LICENSE

Community examples

Looks like there are no examples yet.