Adding emojis to ggplot2 with emoGG

Package

Author

DL Miller

Search the desired emoji

Each emoji can be specified with a code. You can make use of the emoji_search function to look for the code of the emoji you want to add.

# install.packages("remotes")
# remotes::install_github("dill/emoGG")
library(emoGG)

# Search for a emoji
emoji_search("flower")

	emoji	code	keyword
1928	wilted_flower	1f940	flower
1940	cherry_blossom	1f338	flower
2748	rosette	1f3f5	flower
4130	o	2b55	circle
4131	o	2b55	round
5234	eritrea	1f1ea	er

Using emojis instead of points

In the previous section we looked for emojis related with flowers. If you choose the cherry_blossom emoji you have to pass its code to the geom_emoji function as follows.

# install.packages("remotes")
# remotes::install_github("dill/emoGG")
library(emoGG)
# install.packages("ggplot2")
library(ggplot2)

# Plot 
ggplot(iris, aes(Sepal.Length, Sepal.Width)) +
  geom_emoji(emoji = "1f938")

emoGG ggplot2 package for using emojis

Other example can be adding diamonds to the diamonds dataset. In this case the corresponding code is "1f48e".

# install.packages("remotes")
# remotes::install_github("dill/emoGG")
library(emoGG)
# install.packages("ggplot2")
library(ggplot2)

# Sample of diamonds data set
set.seed(5)  
dmnds <- diamonds[sample(nrow(diamonds), 800), ]

# Plot with real diamonds
ggplot(dmnds, aes(carat, price)) + 
  geom_emoji(emoji = "1f48e")

Adding emojis to ggplot2 with emoGG

Using emojis as background image

Emoji as background in ggplot2

The package comes with an additional function named add_emoji, which allows you to add any emoji as a background. In the following example we are adding a car to a scatter plot made with the mtcars dataset.

# install.packages("remotes")
# remotes::install_github("dill/emoGG")
library(emoGG)
# install.packages("ggplot2")
library(ggplot2)

# Plot with car
ggplot(mtcars, aes(wt, mpg)) + 
  geom_point() +
  add_emoji(emoji = "1f697")