Themes in ggplot2 package
The ggplot2 package in R Language has 8 built-in themes. To use these themes we just need to add that theme function to the plot. These functions change the look and feel of a plot by manipulating three key aspects of the plot that are background color, panel background color, and gridlines
Syntax: plot + theme_function()
Here, are the following 8 prebuilt themes in the ggplot2 package in R Language:
- theme_grey(): Creates a gray background color and white grid lines with no border.
- theme_bw(): Creates a white background and gray grid lines with a black border.
- theme_linedraw(): Creates a white background color and black grid lines with a thick black border.
- theme_light(): Creates a white background color and light gray grid lines with a light gray border.
- theme_dark(): Creates a dark gray background color and gray grid lines with no border.
- theme_minimal(): Creates a white background color and has no grid lines with no border.
- theme_classic(): Creates a white background color and no grid lines. It only has black axis lines.
- theme_void(): Creates a white background with no border, gridlines, or axis lines.
Example:
A Simple bar plot with all 8 themes combined using the grid.arrange function of gridExtra package.
R
# Create sample data set.seed(5642) sample_data <- data.frame(name = c("Geek1","Geek2", "Geek3","Geek4", "Geeek5") , value = c(31,12,15,28,45)) # Load ggplot2 package and gridExtra library("ggplot2") library("gridExtra") # Create bar plot using ggplot() function basic_plot <- ggplot(sample_data, aes(name,value)) + geom_bar(stat = "identity") # add theme function to plot all 8 themes theme_grey <- basic_plot + ggtitle("theme_grey")+ theme_grey() theme_bw <- basic_plot+ ggtitle("theme_bw")+ theme_bw() theme_linedraw <- basic_plot+ ggtitle("theme_linedraw")+ theme_linedraw() theme_light <- basic_plot+ ggtitle("theme_light")+ theme_light() theme_dark <- basic_plot+ ggtitle("dark")+ theme_dark() theme_minimal <-basic_plot+ ggtitle("minimal")+ theme_minimal() theme_classic <- basic_plot+ ggtitle("classic")+ theme_classic() theme_void <- basic_plot+ ggtitle("theme_void")+ theme_void() # arrange all the plots with different themes together grid.arrange(theme_grey, theme_bw, theme_linedraw, theme_light, theme_dark, theme_minimal, theme_classic, theme_void, ncol = 4) |
Output:
Themes and background colors in ggplot2 in R
In this article, we will discuss how to change the look of a plot theme (background color, panel background color, and gridlines) using the R Programming Language and ggplot2 package.
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