Question: Write a program in R that retrieves data. Given two file and , list the total hours flown by anyone having a rating of CFI,

Write a program in R that retrieves data. Given two file and , list the total hours flown by anyone having a rating of "CFI", "MFI", or "AME".

. : pilot_id Last_name. first_name. city. state. rate1. rate2. rate3. medical_class. date_of_medical. flight_review_date

. : pilot_id. plane. flight_date. flight_duration.

the format of the output :

pilot_ID flight_duration. rate1. rate2. rate3. total

Total flight durations =

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