2. Creating and Compiling(Knitting/Rendering) an R Markdown File

2.1 Installing the Package

In order to use R Markdown in R Studio, you first need to install and load two packages: rmarkdown and tinytex. The process can be done either through the Package tab at the right bottom or a few lines of code.

Option 1:

Option 2:

Input

# Vector of package names
packages <- c("rmarkdown", "tinytex")

# Check if each package is installed and install if not
lapply(packages, function(x) {
  if(!require(x, character.only = TRUE)) {
    install.packages(x)
    library(x, character.only = TRUE)
  }
})

2.2 Creating an R Markdown File

2.3 Organizing an R Markdown File

Put all of the code that should be run together in the same code chunk. This about 1 chunk = 1 output (analysis or table).

Use the outline section to find your way around. Code chunk names and headers are critical.

2.4 Compiling(Knitting/Rendering) an R Markdown File

Once a new Rmd file is created, it contains some sample content. Let’s go ahead and experiment with knitting it for now.

Option 1:

Option 2:

Input

rmarkdown::render('test.Rmd', 'html_document')

This page is meant to walk you through the process of installing the necessary packages, opening and rendering an R Markdown file, in order to get you ready move on to learn how to make an R Markdown file for your own needs.
A pause here for questions.