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14 lines
291 B
14 lines
291 B
3 years ago
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install.packages("hflights")
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install.packages("dplyr")
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library(hflights)
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library(dplyr)
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str(hflights)
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colnames(hflights)
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hflight_df = tbl_df(hflights)
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hflight_df
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# gain이라는 컬럼명의 ArrDelay - DepDelay 값의 파생변수 생성
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aa = mutate(hflight_df, gain=ArrDelay-DepDelay)
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aa
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