6.1 Loading datasets

library(readr)

look at read_ set of functions

heights = read_csv('data/heights.csv')
## Parsed with column specification:
## cols(
##   earn = col_double(),
##   height = col_double(),
##   sex = col_character(),
##   ed = col_integer(),
##   age = col_integer(),
##   race = col_character()
## )

• skip number of rows
• comments can be skipped
• col_names for no column names
  • manually pass in column names
• na specifies what is “missing”

in base R, read_csv, data.table::fread()

string as factors! useing readr compared to base R