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.