Get, set and update themes.
Use theme_get to get the current theme, and theme_set to
completely override it. theme_update and theme_replace are
shorthands for changing individual elements in the current theme.
theme_update uses the + operator, so that any unspecified
values in the theme element will default to the values they are set in the
theme. theme_replace will completely replace the element, so any
unspecified values will overwrite the current value in the theme with NULLs.
theme_update(...) theme_replace(...) theme_get() theme_set(new)
... |
named list of theme settings |
new |
new theme (a list of theme elements) |
p <- ggplot(mtcars, aes(mpg, wt)) +
geom_point()
p
old <- theme_set(theme_bw())
p
theme_set(old)
p
#theme_replace NULLs out the fill attribute of panel.background,
#resulting in a white background:
theme_get()$panel.background
old <- theme_replace(panel.background = element_rect(colour = "pink"))
theme_get()$panel.background
p
theme_set(old)
#theme_update only changes the colour attribute, leaving the others intact:
old <- theme_update(panel.background = element_rect(colour = "pink"))
theme_get()$panel.background
p
theme_set(old)
theme_get()
ggplot(mtcars, aes(mpg, wt)) +
geom_point(aes(color = mpg)) +
theme(legend.position = c(0.95, 0.95),
legend.justification = c(1, 1))
last_plot() +
theme(legend.background = element_rect(fill = "white", colour = "white", size = 3))Please choose more modern alternatives, such as Google Chrome or Mozilla Firefox.