A less well-known fact about R Markdown is that many other languages are also supported, such as Python, Julia, C++, and SQL. The support comes from the knitr package, which has provided a large number of language engines. Language engines are essentially functions registered in the object knitr::knit_engine. You can list the names of all available engines via: ## [1] "awk" "bash" "coffee" ## [4]
![2.7 Other language engines | R Markdown: The Definitive Guide](https://cdn-ak-scissors.b.st-hatena.com/image/square/e8ab73197aeced02ccb7bc504d78ef504b5e4c8c/height=288;version=1;width=512/https%3A%2F%2Fbookdown.org%2Fyihui%2Frmarkdown%2F%2Fimages%2Fcover.png)