Data wrangling: tidy data

Overview

• Define a tibble
• Demonstrate how vectors can be read and parsed
• Define various data file formats and functions for importation
• Define tidy data and its characteristics
• Practice tidying data

Before class

• Read Chapters 9-12 from R for Data Science

Class materials

• Importing data into R
• Tidy data
• Practice tidying data

Additional readings

• Lohr. 2014. For Big-Data Scientists, “Janitor Work” Is Key Hurdle to Insights. New York Times.
  • Data Carpentry - a response to the NYTimes article
• Pivoting in tidyr