emojifont is an implementation of using emoji font in both base and
'ggplot2' graphics. emojifont is released on
CRAN and the source
code is hosted on GitHub.
Author
Guangchuang Yu, School of Public Health, The University of Hong Kong.
Installation
To install emojifont, start R and enter:
install.packages("emojifont")
Examples
base plot
require(remoji)
set.seed(123)
x <- rnorm(10)
set.seed(321)
y <- rnorm(10)
plot(x, y, cex=0)
text(x, y, labels=emoji('cow'), cex=1.5, col='steelblue', family='OpenSansEmoji')
ggplot2
dd=data.frame(x=emoji(c("satisfied", "disapointed")), y=c(50, 10))
emoji_text=element_text(family="OpenSansEmoji", size=20)
ggplot(dd, aes(x, y)) + geom_bar(stat='identity', aes(fill=x)) +
ggtitle(paste(emoji(c("+1", "-1")), collapse=" "))+
theme(axis.text.x = emoji_text, legend.text=emoji_text, title=emoji_text) +
xlab(NULL)+ylab(NULL)
ggtree
Please refer to https://yulab-smu.github.io/treedata-book/chapter8.html#phylomoji.
Found out more on https://cran.r-project.org/web/packages/emojifont/vignettes/emojifont.html.