Lec13 Intro to Data Manipulation

We introduce the Five Main Verbs (5MV) for data manipulation. Today: select() columns i.e. variables and filter() rows.

Wed Oct 12, 2016

Announcements

Lec12 learning check discussion
Switch gears to new part of data/science pipeline: Tidy/Transform
dplyr cheatsheet:
- Handout in class
- Also accessible from RStudio -> Menu Bar -> Help -> Cheatsheets -> Data Manipulation with dplyr and tidyr
What if men and women voted in separate elections? Which states switched? Code

In-Class

Slides: the Five Main Verbs (5MV) for data manipulation AKA data wrangling
Chapter 5 up to, but not including Section 5.1.3 of textbook on select() and filter()

After-Class Updates

Lec13 learning check discussion