Others languages

LaTeX

You can use raw \(\LaTeX\)’s code normally in Markdown documents.

If you wanna insert a \(\LaTeX\)’s code inline, you just need to insert the code between \( \) or $ $. Por example, \(f(x) = x^{2}\) will generate \(f(x) = x^{2}\).

For insert a equation you just need to insert the code between \[ \] or $$ $$. Por example, \[ f(x) = x^{2}. \] will generate

\[ f(x) = x^{2}. \]

Everything that you do in a .tex file you are able to do into a .rmd file.

If you need to use a different package, you can load this package in the YAML header, inserting then in this way:

header-includes:
   - \usepackage{package_name}
   - \usepackage{other_package}

Important: To work, you have to respect the code indentation.

---

R

To insert R code you have to put your code into a environment called chunk.

Before your code you need to put three ` followed by {r}. After, to close the environment you have to put more three.

Inside the chunk all te code is interpreted like R code.

In the RStudio you already have a button to insert chunks.

Into the chunk, after the letter r that you have to put, you can insert several options. Por example, if you don’t wanna that the source code appear, use the option echo=FALSE. You wanna that the code appear but not the result? results='hide'. You have options for resize images, image captions, etc.

You have several options for several things.

All this options make part of Knitr, this will be shown in the next section.

Here you can see an list with all this options and how to use them.

Inside ` followed by the letter r, you are able to insert inline R code.

Others

For insert other languages, the procedure is exactly the same that for R.

• If you wanna insert Bash code, you have to put {bash};

• Python code? Put {python};

• SQL? Put {sql};

• Stan? Put {stan};

• Etc.