% Overview of the Day % DPI R Bootcamp % Jared Knowles

Welcome

Thanks for being here today and joining us in Madison Wisconsin for the first inaugural Wisconsin DPI R Bootcamp!

Outline

We hope to move through the following topics in the next couple of days.

• Introduction to R
• Getting Data In
• Handling Data in R
• Cleaning and Merging Data
• Analytics
• Visualizations
• Getting Results Out
• Writing Functions, Advanced Analytics, and other topics

Agenda

Day 1: December 3rd, 2012

• 8:30am Convene
  • Topic 1: Introduction to R
  • Coffee Break
  • Topic 2: Getting Data In
• 12:00pm Lunch (on your own)
• 1:00pm Reconvene
  • Topic 3: Manipulating Data
  • Topic 4: Cleaning Data
  • Break
  • Topic 5: Basic Analytics
• 04:30pm Adjourn + Questions

Agenda (II)

Day 2: December 4th, 2012

• 8:30am Convene (optional)
  • Intro to programming principles
  • Coffee Break
  • Intro to statistics
• 12:00pm Lunch

Agenda (III)

Day 2: December 4th, 2012

• 1:00pm Convene
  • Topic 5: Basic Analytics (part 2)
  • Topic 6: Visualization
• 4:30pm Q&A and Adjourn

Agenda (IV)

Day 3: December 5th, 2012

• 8:30am Convene
  • Topic 6: Visualization (part2)
  • Break
  • Topic 7: Exporting/sharing Your Work
• Lunch
  • Topic 8: Advanced Topics
  • Break
  • Work on projects
• 4:00pm Q & A
• 4:30pm Adjourn

Materials

If you don't have it already, now might be a good time to install R and RStudio to get started.

• Download R
• RStudio
• We'll also want to install a few basic packages. This can be done on the fly later, but a few include ggplot2;knitr;plyr

Installing R on Windows

Installation Tips

• Setting up R on Windows XP is straightforward. On Windows 7 or Vista you may need to run in administrator mode to install extensions.
• Standard R interface in Windows is pretty ugly, which is why we use RStudio!

Next Install packages

First, watch this tutorial

Install Packages

• Are you running RStudio in administrator mode on Windows Vista or Windows 7?
• If not, you need to be. Right click on RStudio and then click “Run as Administrator”
• If you are on a Mac or Windows XP you can disregard this

Install Packages (2)

• Now, copy and paste the code below into the bottom left window in RStudio (the R terminal):

install_new<-function(mypkg){
  if (mypkg %in% installed.packages()) cat("Package already installed")
  else{cat("Package not found, so installing with dependencies... /n
           Press CTRL C to abort.")
    Sys.sleep(5)
    install.packages(mypkg,repos="http://cran.wustl.edu/")
}
}

install_new('plyr')
install_new('lmtest')
install_new('ggplot2')
install_new('gridExtra')
install_new('stringr')
install_new('knitr')
install_new('quantreg')
install_new('zoo')
install_new('xtable')
install_new('lme4')
install_new('caret')

How it Works

• I will present a mixture of concepts and examples that illustrate various features of R
• Periodically we will stop and do some exercises to practice what we have talked about
• You have been provided with the data used and all the code in the examples on the screen
• For each tutorial simply open the “Tutorial X.R” file associated with the tutorial number to get access to the R code associated with each slide
• We'll talk about how to load the data
• You can follow along as I move through the slides, or wait until we pause for an example and run the code
• Please hold questions until either the exercise period or the end of each tutorial due to the large size of the class!

Housekeeping

• No food in the Training Center (drinks only with covered lids!)
• Feel free to get up at any time as necessary
• Let's make sure now everyone can launch R, RStudio, and has downloaded and can access the materials for the training
• Also, make sure you are set up with the wi-fi password!

Have fun!

Let's get started!

References and Resources

• Video Tutorials on R
• An R Vocabulary for Starting Out
• R Features List
• Olivia Lau's R Programming Crash Course
• Josef Fruehwald's R Notes

Attribution and License

This work (R Tutorial for Education, by Jared E. Knowles), in service of the Wisconsin Department of Public Instruction, is free of known copyright restrictions.