Design Custom Theme for ggplot2 Plots — design

Creates a customized ggplot2 theme based on user-specified parameters for plot elements such as title size, axis sizes, legend settings, and theme style. Supports various base themes and allows fine-tuning of visual aspects.

Usage

design_mytheme(
  theme = c("light", "bw", "classic", "classic2"),
  plot_title_size = 2,
  axis_title_size = 2,
  axis_text_size = 12,
  axis_angle = 60,
  hjust = 1,
  legend.position = "bottom",
  legend.direction = "horizontal",
  legend.size = 0.25,
  legend.key.height = 0.5,
  legend.key.width = 0.5,
  legend.size.text = 10,
  legend.box = "horizontal"
)

Arguments

theme: Base theme: "light", "bw", "classic", "classic2". Default is "light".
plot_title_size: Relative size of plot title. Default is 2.
axis_title_size: Relative size of axis titles. Default is 2.
axis_text_size: Size of axis tick labels. Default is 12.
axis_angle: Angle of x-axis tick labels. Default is 60.
hjust: Horizontal justification for x-axis text. Default is 1.
legend.position: Legend position: "none", "left", "right", "bottom", "top". Default is "bottom".
legend.direction: Direction of legend items: "horizontal" or "vertical". Default is "horizontal".
legend.size: Size of legend key. Default is 0.25.
legend.key.height: Height of legend key in cm. Default is 0.5.
legend.key.width: Width of legend key in cm. Default is 0.5.
legend.size.text: Size of legend text labels. Default is 10.
legend.box: Orientation of legend box: "horizontal" or "vertical". Default is "horizontal".

Value

A ggplot2 theme object.

Author

Dongqiang Zeng

Examples

library(ggplot2)
p <- ggplot(mtcars, aes(wt, mpg)) +
  geom_point()
mytheme <- design_mytheme(theme = "bw", plot_title_size = 1.5, axis_text_size = 14)
p + mytheme + ggtitle("Example Plot")