Wrangle the data

• 🤠 Tidying + transforming = wrangling
  • 🥊 Making data usable often feels like a fight.
• Tidy: Consistent structure makes everything easier
  • ↕↕↕️ Columns = variables
  • ↔︎️ Rows = observations
• Transform: Further refinement
  • Filter (narrow in)
  • Mutate (create new variables)
  • Summarize (calculate things for groups)