Intro to RStudioHouston R Users Group

Ed Goodwin, CFA

Why use an IDE?

Write Code

Compile Code

Run Code

Debug Code

Create Docs

Share Code

Version Control

Integrated Development Environment (IDE)

Why use RStudio?• built for R from the ground up (syntax highlighting, autocompletion, formatting)

• integrates R packages, documentation, debugging and viewing tools

• enforces best practices (documentation, version control, unit testing)

• community support

Versions of RStudioFeature RStudio Desktop RStudio Server RStudio Server Pro

License AGPL AGPL RStudio License

Price Free/$995 Free $9,995/server/yr

Full IDE ✓ ✓ ✓Remote Access ✓ ✓Load Balancing ✓Shiny Integration ✓ ✓ ✓

Group Admin Tools ✓Security Tools ✓

Monitoring Tools ✓

Preview Version of RStudio

• Customizable keybindings

• Pane zooming

• Multiple source windows

• Registering RStudio add-ins (RStudio ecosystem)

• Markdown improvements

https://www.rstudio.com/products/rstudio/download/preview/

RStudio IDE

Editor Panel

Console Panel

WorkspacePanel

PlotsPanel

Integrated Documentation

Help and Tutorialshttps://www.rstudio.com/resources/webinars/

Keyboard Shortcuts

Viewer• real time view of data

• filtering, sorting and search capability

Dygraphs• R interface to dygraphs

JavaScript library • Dygraphs package

independent of RStudio, but supported in the Plot panel

• install.packages(“dygraphs”) • supports zooming and panning

of time series

dygraph(pigs, main = "Monthly Pigs Slaughtered - Victoria") %>% dyRangeSelector(dateWindow = c("1980-01-01", "1996-01-01"))

RStudio ProjectsInitialize

• creates an .Rproj file to store settings • creates a .Rproj.user directory • Loads project into Rstudio into the toolbar

Project Options

Debugging• Breakpoints (Shft+F9)

• R functions

• browser()

• debugonce()

• Environment Pane

• Traceback (Callstack)

• Console

• step into function (Shft+F4)

• finish function (Shft+F6)

• continue running (Shft+F5)

• stop debugging (Shft+F8)

Resources• “Intro to Debugging in R

https://vimeo.com/99375765 • Advanced R chapter on Debugging

http://adv-r.had.co.nz/Exceptions-Debugging.html

Knitr and Markdownhttp://rmarkdown.rstudio.com/

Version Control

https://support.rstudio.com/hc/en-us/articles/200532077-Version-Control-with-Git-and-SVN