Fundamentals.R

# Syntax errors and semantic errors
  REPL, continuation prompt, syntax errors

# Basic data types
  There are 27 different data types in R.
  You only see 15: NIL, SYM, CLOS, ENV, LANG, LGL, INT, REAL, CPL, STR, DOT, VEC, EXPR, EXTPTR, RAW


 NULL

 logical, integer, numeric, complex, character, list

 expressions & calls

 external pointer

 raw

 ...

 function

 name

 environment