cm012 2015-10-15 Thursday overview

• HW04 is due sometime Friday 2015-10-16. Write a function, documenting process from interactive pilot to formal tests. Apply function to Gapminder using dplyr or, maybe, plyr. Invitation to experiment with broom and then do more split-apply-combine or visualization on the results.
• Tidy data and reshaping
  • Slides from Garrett Grolemund, RStudio
  • Hands on spreading and gathering with gapminder
  • the tidyr package: on CRAN, development on GitHub
• Be the boss of your factors
• Next week
  • Tues: Practical figure-making stuff (e.g. color and file management)
  • Thurs: Guest lecture from Tamara Munzner