3.1 What are tibbles?

• Modern re-thinking of data frame.
• They leave behind some (sometimes user-unfriendly) features of classical data frames:
  • No string to factor conversion (NOTE: since version 4.0 of R, this is no longer the case for classical data frames)
  • No automatic creation of row names.
  • Column names can be non-valid R variable names (for example, they can start with numbers).