airports$tz with values \N replaced
with NA (#36).
weather$year and weather$month are now
integers to match flights$year and
flights$month (@jozefhajnala, #34)
weather$time_hour and flights$time_hour
are now stored in the America/New_York timezone (#19).
weather data updated from latest Iowa State mesonet
(@rmcd1024, #24).
wind_gust is now correctly captured from the underlying
data, rather than being a copy of wind_speed.
precip is better captures the hourly preciptation (which
tends to be recorded at 51 minutes past the hour) (#27)
nycflights imports tibble so you get nice printing even when no other tidyverse package is loaded.
airports now has a tzone column that
contains the IANA time zone for the airport (#15).
airlines: carrier columns are
characters instead of factors (#2).
airports: duplicate entry for BFT removed
(#7).
flights:
new time_hour variable combines year,
month, day, and hour into a
single variable (#11).
new sched_dep_time and sched_arr_time
variables give scheduled departure and arrival times - these are more
appropriate for connecting to weather data. hour and
minute are now computed from the scheduled departure time,
not the actual departure time.
missing tailnum now recorded as NA, not
"" (#10).
weather:
Includes weather data for all airports.
New time_hour variable combines year,
month, day, hour into a single
POSIXct variable.
Saved as ungrouped.