I need this in R language

Week Eight Assignment: Flights Data

Attached Files:

•  B05396_Ch03_Code_flights_sep_oct15.txt (149.049 MB)
•  B05396_Ch03_Code_flights_sep_oct15.zip (17.698 MB)

1. Create a subset of your flights data showing flights that were not cancelled and origin flight date, airline id, city and destination city.  
2. Save the result from 1 in 4 separate files corresponding to the variables in the subset. 
3. Remove the subs1.ff file from your workspace and then navigate to the stored copy and restore it (remember to use the tab function to expand the path to the file). Show and comment your code line by line. 

Submit one document with your responses and any screenshots of your work in R Studio. Include a slice of your desktop with your screenshots. Always repeat the question you are answering.