Introduction to emojifont package in R

In this article, we will see how to use emojifont package in R. This package is designed to bring emoji font to R Programming Language.

We will have a look at how to search and print emoji using emojifont package.

Installation:

To install this package type the below command in the terminal.

install.packages(“emojifont”)

Emoji characters in R

Now we have emojifont package installed so we will import it using library(emojifont). To print emoji we will use emoji(“emojiname”) to search emoji we will use search_emoji(“name”), this will return all the related emoji and we will store it as a list and print using emoji().

R

# importing package
library(emojifont)

# printing joy emoji
emoji("joy")

# searching emoji
list <- c(search_emoji("joy"))

# printing all the emoji's in the list
emoji(list)

Output:

Emoji characters in R

Getting a random sample of emoji

To get random emoji we will be using sample_emoji(x) to get random emoji’s.

R

# importing package
library(emojifont)

# getting random sample of emojis
list = c(sample_emoji(10))

# printing all the emoji's in list
emoji(list)

Output:

random sample of emoji

Emoji in R plot

Method 1: Using Base Plot

plot() is used to plot the chart where x and y are coordinates.

plot(x, y, …)

“…” are the arguments passed to methods like graphicals parameters.

text() is used to draw vectors labels. where x,y coordinates,

text (x, y = NULL, labels = seq_along(x$x), cex = 1, col = NULL, …)

R

# importing package
library(emojifont)


# generating random numbers for x-axis
set.seed(200)

# gets 10 random point on x axis from
# seed
x <- rnorm(10)

# generating random numbers for y-axis
set.seed(100)

# gets 10 random point on y axis from
# seed
y <- rnorm(10)

# Plotting a blank chart in order to
# clear the screen
# if any chart is already opened
# or the emoji's will overlap
plot(x, y, cex = 0)

# plotting chart
text(x, y, labels=emoji('joy'), cex=3.5, col='red',
     family='EmojiOne')

Output:

Method 2: Using ggplot

ggplot() is used to plot chart, where data is our data frame, aes() describes how content will be plotted on the screen.

ggplot(data = NULL, mapping = aes(), …)

R

# importing package
library(emojifont)
library(ggplot2)

# generating random numbers for x-axis
set.seed(200)

# gets 10 random point on x axis from
# seed
x <- rnorm(10)

# generating random numbers for y-axis
set.seed(100)

# gets 10 random point on y axis from
# seed
y <- rnorm(10)

# defining data frame
data <- data.frame(x=x,y=y)

# plotting chart
ggplot(data,aes(x, y, color="red", label=emoji('joy'))) +
  geom_text(family="EmojiOne", size=6)

Output:

Method 3: Using Geom_emoji

geom_emoji() works as a wrapper for visualizing emoji.

R

# importing package
library(emojifont)
library(ggplot2)

# plotting emoji
ggplot() + geom_emoji("joy", color='red') + theme_void()

Output:

Method 4: Font Awesome

geom_fontawesome() works as a wrapper for visualizing fontawesome.

R

# importing package
library(emojifont)
library(ggplot2)

# plotting emoji
ggplot() + geom_fontawesome("fa-desktop",
                            color='black') + theme_void()

Output: