The ewr
data frame has 46 rows and 11 columns.
Gives taxi in and taxi out times for 8 different airlines and several
months at EWR airport.
Airline codes are
AA
(American Airlines),
AQ
(Aloha Airlines),
AS
(Alaska Airlines),
CO
(Continental Airlines),
DL
(Delta Airlines),
HP
(America West Airlines),
NW
(Northwest Airlines),
TW
(Trans World Airlines),
UA
(United Airlines),
US
(US Airways), and
WN
(Southwest Airlines)