Preparation for R and RStudio Installation

Visit the CRAN website and download the version for your operating system.
There are three options, but the instructions below focus on Windows:
- Download R for Linux (Debian, Fedora/Redhat, Ubuntu)
- Download R for macOS
- Download R for Windows
Visit the Posit website to download RStudio for your platform.
Note: R can function without RStudio, but RStudio requires R to run.
If you use a Mac, refer to the following guide for installing R and RStudio:
- TC Technology Knowledge Base

Checking If R and RStudio Are Installed

Open RStudio and check the “Console” (typically in the bottom-left panel unless you have changed the layout) to see the current version of R installed.

To update to the latest version:
- Go to the Help tab \(\rightarrow\) Check for Updates

Installing R and RStudio on Windows

Run the downloaded R installer and use the default options.
- Both 32-bit and 64-bit versions are installed, but most computers will use the 64-bit version.
Run the downloaded RStudio installer (a .exe file).

RMarkdown

RMarkdown allows you to create documents (PDF, HTML, Word, or slides) that integrate code and text. It is useful for reproducible research and teaching with dynamic content.

Open RStudio and install the required packages:

install.packages("rmarkdown")
install.packages("tinytex") # TinyTeX (a lightweight LaTeX distribution)
tinytex::install_tinytex()

Introduction to RMarkdown

This section provides a basic example of an RMarkdown file. You can write text, include R code, and generate output dynamically.

Load Required Packages

library(ggplot2) # Load ggplot2 for visualization

## Warning: package 'ggplot2' was built under R version 4.3.3

Basic Calculations in R

# Simple arithmetic
x <- 5 + 3
x # Output result

## [1] 8

Create a Simple Plot

# Generate random data
data <- data.frame(x = rnorm(100), y = rnorm(100))

# Scatter plot using ggplot2
ggplot(data, aes(x = x, y = y)) +
  geom_point() +
  theme_minimal()

Inline Code Example

The value of x computed earlier is 8.

Conclusion

You can write formatted text.
Run and display R code within the document.
Generate tables, plots, and dynamically update results.

Click the Knit button in RStudio to generate an HTML, PDF, or Word document.

Setup Guide