Set major grid lines on a ggplot

Add or remove major grid lines from a ggplot object.

Usage

major_grid(
  plot,
  grid_major = TRUE,
  grid_major_colour = "grey80",
  grid_major_linetype = 2,
  grid_major_linewidth = 0.3
)

Arguments

plot

A ggplot object.

grid_major

Whether to show major grid lines. Default is TRUE.

grid_major_colour

Grid line colour. Default is "grey80".

grid_major_linetype

Grid line type. Default is 2 (dashed).

grid_major_linewidth

Grid line width. Default is 0.3.

Value

A ggplot object with modified panel.grid.major theme element.

Examples

library(ggplot2)
p <- ggplot(mtcars, aes(wt, mpg)) + geom_point()
major_grid(p, grid_major = TRUE)