Learn R Programming

cowplot (version 0.5.0)

background_grid: Add/modify/remove the background grid in a ggplot2 plot

Description

This function provides a simple way to modify the background grid in ggplot2. It doesn't do anything that can't be done just the same with theme(). However, it simplifies creation of the most commonly needed variations.

Usage

background_grid(major = c("xy", "x", "y", "only_minor", "none"),
  minor = c("xy", "x", "y", "none"), size.major = 0.2, size.minor = 0.5,
  colour.major = "grey90", colour.minor = "grey98")

Arguments

major
Specifies along which axes you would like to plot major grid lines. Options are "xy", "x", "y", "only_minor" (disables major grid lines but allows you to switch on minor grid lines), "none".
minor
Specifies along which axes you would like to plot minor grid lines. Options are "xy", "x", "y", "none".
size.major
Size of the major grid lines.
size.minor
Size of the minor grid lines.
colour.major
Color of the major grid lines.
colour.minor
Color of the minor grid lines.