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Data for Exercise 2.9
Airline
A data frame with 11 observations on the following 3 variables.
airline
a factor with levels Alaska Amer West American Continental Delta Northwest Pan Am Southwest TWA United USAir
Alaska
Amer West
American
Continental
Delta
Northwest
Pan Am
Southwest
TWA
United
USAir
ontime
a numeric vector
complnt
# NOT RUN { str(Airline) attach(Airline) barplot(complnt,names.arg=airline,col="lightblue") plot(ontime,complnt) detach(Airline) # }
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