Delays on US airports
Now that you have successfully loaded, joined, and cleaned the DataFrame, it's time to find which airport in the US is best to avoid!
The flights DataFrame you created in the last exercise has been loaded for you.
flights contains, among others, the following columns important for this exercise:
airport, containing the starting airport of the flight;departure_delay, containing the number of minutes of delay at departure.
DataFrames, Statistics, and Chain packages have been loaded for you.
Questo esercizio fa parte del corso
Data Manipulation in Julia
Istruzioni dell'esercizio
- Start a
@chainmacro for theflightsDataFrame. - Group flights by the
airportcolumn. - Calculate the minimum, median, and maximum departure delay for each airport.
- Sort the result by the median departure delay in descending order.
Esercizio pratico interattivo
Prova a risolvere questo esercizio completando il codice di esempio.
# Start a chain macro
____
# Group by airport
____
# Calculate the minimum, median, and maximum departure delay
____
# Sort by median departure delay in descending order
____
println(first(_,5))
end