cm010 2015-10-08 Thursday overview

• HW04 will be 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.
• Writing your own functions.
  • Write your own R functions, part 1
  • Write your own R functions, part 2
  • Write your own R functions, part 3
  • Function-writing Practicum