Data updating | Data analysis | Data visualization | View the source

Getting started | Choosing tools | Custom apps | What you can ask for | Chart controls | How it works | See also

Provide a greeting | Generate a greeting

Starter template | Deferred data sources | Reactives | Filtered data | SQL query | Title | Custom UI | Data views | Programmatic updates | Multiple tables | Multiple filtered tables | See also

Data frames | Database connections | DuckDB | SQLite | PostgreSQL | MySQL | Creating a database from a data frame | Custom sources

Specify a model | Credentials | Recommended models

Default prompt | Data description | Additional instructions | Custom template

Key Features | Setup Your Theme | Using theme_xaringan() without calling a style function | Colors | Custom Color and Fill Scales | Fonts | Automatically match slide and plot fonts | Manually specify plot fonts | Using fonts not in Google Fonts | Tips for using the showtext package | R Markdown | MacOS | In RStudio

Use any version of Chrome or chrome-headless-shell with chromote | Using a Chrome-based browser that you installed

Commands and Events | Automatic Events

Using JavaScript | Synchronous version | Asynchronous version | Using Chrome DevTools Protocol commands

Synchronous version | Asynchronous version

Why use async? | Async commands | Turning asynchronous code into synchronous code | Async events

Setting width and height of the viewport (window) | Taking a screenshot of a web page after interacting with it | Taking screenshots of web pages in parallel

Method 1: Manually interact with the page | Method 2: Capture and re-use cookies

Creating new tabs and managing the process | Commands and Events | The Chromote object model | Debugging | Resource cleanup and garbage collection

Installation | Local Chrome Installation | Dependencies

Choosing a Tutorial's Language | Customizable UI elements: | Buttons | Text | Format of language Option in YAML Header: | Default Language | Customizing a Single Language | Customizing Multiple Languages | Store Customizations in a JSON File | Complete Translations

Setup | Using epoxy chunks | Inline transformers | Transform replaced values | epoxy chunks are vectorized | Templating with epoxy chunks | Whisker engine | HTML and LaTeX chunks | Markdown chunks | Raw HTML chunks | Raw LaTeX chunks

Plug-in reporting | Collect your variables in lists | Reporting Model Results | Inline reporting with autocomplete | Intermittent inline-reporting | Repeated inline reporting | Vectorized inline reporting chunks | Template inline reporting chunks

Templating in Shiny | Introducing epoxy in Shiny | A basic Shiny app with textOutput() | Setting up ui_epoxy_html() | Default or error values | A few more things about ui_epoxy_html() | Connecting epoxy with a reactive data frame | Markdown templates | Mustache templates

Alternative options for hosting learnr tutorials | Optimal settings for shinyapps.io | Optimizing for classroom settings | Reducing cost | Example use case | Context | Initial settings | Adjusting based on usage metrics | Troubleshooting beyond settings

Overview | Render HTML | Render PDF | Render GIF | Render MP4 | Render PPTX | Render PNG | Render Social | "Complex" slides and partial / incremental slides

Overview | Checking Student Code | Custom Grading Logic | Compare with Solution Code | Writing Custom Logic | Exercise Objects | Grading Helper Functions | Feedback Messages

Overview | Multiple solutions, same result | Example | Providing different messages for different solutions | Multiple solutions, different results | Example | Working with all solution results

Introducing html_document_js | Scoping JavaScript Chunks | Using the Output <div> | Interactive Documents | Other console methods | JSON Chunks | HTML Chunks

Inspiration

Quick Intro | Themes | Theme Settings | Fonts | Colors | Adding Custom CSS