International College of Digital Innovation, Chiang Mai University
July 3, 2025
Why we use RStudio?
RStudio is an integrated development environment (IDE) for R that provides several features and tools to enhance the R programming experience. Here are some reasons why many users choose to use RStudio:
User-Friendly Interface and Integrated Tools
Intuitive Layout: RStudio has a well-organized interface.
Syntax Highlighting: It offers syntax highlighting, which helps in reading and writing code more easily.
Script Editor: You can write and edit R scripts, the features like code completion and error checking.
Console: The built-in console allows you to run R commands interactively.
Viewer Pane: You can visualize plots and interactive outputs within the IDE.
Fira Code is a popular monospaced font designed for programming. Here are some key features and information about it:
Features of Fira Code:
Ligatures: Fira Code includes programming ligatures, which are special combinations of characters that are rendered as single symbols (e.g., !=, ->, ==). This makes code more readable and visually appealing.
Monospaced: As a monospaced font, each character takes up the same amount of horizontal space, which is ideal for aligning code and making it easier to read.
Open Source: Fira Code is open-source and can be freely used and modified. It is available on platforms like GitHub.
Cross-Platform: It can be used on various operating systems, including Windows, macOS, and Linux.
Clear and Readable: The font is designed to be legible at different sizes, making it suitable for long coding sessions.
Quarto is an open-source, next-generation publishing system designed for creating dynamic documents,
reports
presentations
websites
dashboard
Shiny
books
ETC.
Allowing for a more flexible and powerful way to create documents that integrate code, text, tables, videos ,and visualizations depending on the output.
Check your computer.
You are install R program.
You are install RStudio.
You are install Quarto.
Warning
This interactive slide cannot run Quarto files (.qmd).
To start using Quarto with RStudio
Follow these steps:
Open RStudio: Launch RStudio from your applications or programs menu.
Create a New Quarto Document:
In RStudio, go to the top menu and select: File\(\rightarrow\)New File\(\rightarrow\)Quarto Document
This will create a new .qmd file where you can write your Quarto content.
Note
In this course, we will focus on creating HTML documents/reports with Quarto.
For the final project, you will learn how to create a dashboard with Quarto.
Write Your Quarto Content: You can start writing your document using Markdown syntax, and include R code chunks where needed. Here’s a simple example:
---title:"My First Quarto Document"author:"Your name"institute:"International College of Digital Innovation, CMU"date: Oct 13, 2024date-format: longformat: html---## IntroductionThis is my first Quarto document.```{r}summary(cars)```
Tip
Copy codes and put into your computer \(\rightarrow\) save file \(\rightarrow\) render.
Quarto Process
Quarto works the same way as R Markdown
After save file, we can render to recieve the output/report
Quarto anatomy
You can render a qmd file in RStudio into HTML, docx and pdf etc. The output based on your set up
Normally for each Quarto file is composed of 3 main components
a YAML header
formatted text
one or more code chunks.
YAML header
YAML header is processed in many stages of the rendering process and can influence the final document in many different ways.
A typical YAML header looks like this, and contains basic metadata about the document and rendering instructions:
---title:"RStudio and Quarto"author:"Somsak Chanaim"institute:"International College of Digital Innovation, CMU"date:"June 26, 2025"date-format: longdate-modified: nowformat: htmltheme: superherotoc: true---
YAML Parameter Explanation
title:"RStudio and Quarto"
title: The main title of the document. Displayed prominently at the top of the output file and used in the browser tab.
author:"Somsak Chanaim"
author: The name of the person who wrote the document. This may appear under the title depending on the format.
institute:"International College of Digital Innovation, CMU"
institute: The organization or affiliation of the author. It can be shown with the author name in the document’s header.
date:"June 26, 2025"
date: The publication or creation date of the document. It can be static (as written here) or dynamically updated.
date-format: long
date-format: Controls the formatting of the date.
long means a format like “June 26, 2025”
Other options: short (e.g., 6/26/2025), medium, full
date-modified: now
date-modified: Automatically sets the “last modified” date to the current date/time when the document is rendered.
format: html
format: Specifies the output format.
html: Renders the document as a web page. Suitable for publishing online with themes, interactivity, and responsive design.
pdf: Converts the document into a print-ready PDF using LaTeX. This is ideal for academic papers, reports, and materials that require precise layout and styling.
docx: Outputs a Microsoft Word document. Useful for collaborative editing, administrative reports, and situations where users prefer Word formatting.
pptx: Creates a PowerPoint presentation. Each section or slide in your document becomes a slide in the .pptx file. Useful for formal presentations that require PowerPoint compatibility.
revealjs: Generates an HTML slideshow presentation using the Reveal.js framework. Great for interactive, browser-based presentations with animations, code, and charts.
dashboard: Builds a web-based dashboard layout with multiple panels and sections (like plots, tables, and text). Useful for showcasing interactive reports and data visualizations.
Each format serves a different purpose depending on the audience and delivery method of the content. You can also configure many appearance and behavior options specific to each format.
Helps readers navigate through the sections of the document.
Formatted text
One of the great things about Quarto is that you don’t need to rely on your word processor to bring your R code, analysis and writing together. Quarto is able to render (almost) all of the text formatting that you are likely to need such as italics, bold, strike-through, super and subscript as well as bulleted and numbered lists, headers and footers, images, links to other documents or web pages and also equations.
---title:"RStudio and Quarto"author:"Somsak Chanaim"institute:"International College of Digital Innovation, CMU"date:"03 Jul 2025"date-format: longformat: htmltheme: superherotoc: true---## sectioncontents...### subsubsectioncontents...#### subsubsubsectioncontents...##### subsubsubsubsectioncontents...
Only for Slide Presentations (PPTX or revealjs)
##: Starts a new slide with a title.
---: Starts a new slide without a title.
Lists
If you want to create a bullet point list of text you can format an unordered list with sub items. Notice that the sub-items need to be indented.
pic 1
Dr. Somsak
pic 2
We are learning R programming to create data visualizations.
Remark
path-to-image-here: You should place your image in the same folder as your .qmd file or create a separate folder for images. This makes it easier to manage and insert image files in the same way.
Note: path-to-image-here can also be a URL.
Equations
If your output contains mathematical symbols, you need to know \(\LaTeX\) commands.
Code
$$ \cos^2(\theta) +\sin^2(\theta) =1$$
Result
\[ \cos^2(\theta) +\sin^2(\theta) =1 \]
There are many online services you can use, such as hostmath
Links
you can also include links to webpages or other links in your document. Use the following syntax to create a clickable link to an existing webpage.
Code
[Link]( some url)
Example code
[web: R for Data Science](https://r4ds.had.co.nz/index.html)
In Quarto, a callout is a special block used to highlight content such as tips, warnings, notes, or important information.
Basic Syntax
::: {.callout-note}## Title (Optional)This is a note callout.:::
Result
Title (Optional)
This is a note callout.
Callout Types (Styles)
Type
Class
Use case
note
.callout-note
For additional information
tip
.callout-tip
Helpful suggestions or shortcuts
important
.callout-important
Key concepts to remember
warning
.callout-warning
Caution before proceeding
caution
.callout-caution
Potential risks or pitfalls
With or Without Icons
::: {.callout-tip icon=true}## Helpful TipYou can use `filter()` from the `dplyr` package to select rows.:::::: {.callout-warning icon=false}## Be CarefulDon't overwrite your original data without backup!:::
🎥 Embedding a YouTube Video in Quarto HTML or Revealjs
To embed a YouTube video in an HTML page or a slide of a Quarto revealjs presentation, you can use shortcodes
Example Code:
{{< video https://www.youtube.com/watch?v=_f3latmOhew&t=12s width="900" height="500" >}}
Result
🎥 Tabset in Quarto HTML or Revealjs
A tabset is a user interface element that lets you organize related content into separate tabs within the same section of a page. Only one tab’s content is visible at a time, and users can switch between tabs by clicking on the tab labels.
Why use tabsets?
To save space by not showing everything at once
To group related information without creating separate sections or pages
To improve readability and user experience, especially in HTML documents, revealjs or dashboards
A column is a vertical section of content placed side by side with other columns. In Quarto, columns help you organize content into multiple parts horizontally within a page or slide.
Why Use Columns?
To make content easier to compare
To improve layout and readability
To present information side by side (e.g., code + output, text + plot)
```{r}#| fig-cap: 'The histogram'set.seed(1)x <- rnorm(300)hist(x)```
The histogram
Chunk code setup with tool in RStudio
GUI
RStudio keyboard shortcuts
RStudio has keyboard shortcuts. A full list can be found under the menu Tools\(\rightarrow\)Keyboard Shortcuts Help. Some of the most useful shortcuts related to Markdown are summarized in Table
Task
Windows & Linux
macOS
Insert R chunk
Ctrl+Alt+l
Command+Option+l
Preview HTML
Ctrl+Shift+K
Command+Shift+K
Knitr document (knitr)
Ctrl+Shift+K
Command+Shift+K
Compile PDF
Ctrl+Shift+K
Command+Shift+K
Run all chunks above
Ctrl+Alt+P
Command+Option+P
Run current chunk
Ctrl+Alt+C
Command+Option+C
Run current chunk
Ctrl+Shift+Enter
Command+Shift+Enter
Run next chunk
Ctrl+Alt+N
Command+Option+N
Run all chunks
Ctrl+Alt+R
Command+Option+R
Go to next chunk/title
Ctrl+PgDown
Command+PgDown
Go to previous chunk/title
Ctrl+PgUp
Command+PgUp
Used result from chuck code or R
Example: If we have chuck code
a <-1b <-3
We can use variable values to display or compute within the content.
Content
The value of a + b is \(^\backprime\)r a + b\(^\backprime\).
The value of a / b is \(^\backprime\)r a / b\(^\backprime\).
Result after render.
The value of a + b is 4.
The value of a / b is 0.3333333.
Some useful package: ymlthis
install.packages("ymlthis")
You will get the addins “Write new R markdown of YAML file
addins ymlthis
Create Awesome Table: DT
The goal of DT is to help you build interactive table.
install.packages("DT")
Example
Visual Markdown Editing menu in RStudio
Rstudio after version 1.4+or after the year 2021, we can use the Visual Markdown Editing menu to product quarto output.
This part is about set up your R code, you can
