실습 csv파일을 불러온다.
hr <- read.csv("C:/data/hrdata.csv",header=T, stringsAsFactors = T)
names(hr)
## [1] "id" "satisfaction_level" "last_evaluation"
## [4] "number_project" "average_montly_hours" "time_spend_company"
## [7] "Work_accident" "left" "promotion_last_5years"
## [10] "sales" "salary" "sex"
실습 옵션없이 csv파일을 불러온다.
hr1 <- read.csv("C:/data/hrdata.csv")
names(hr1)
## [1] "id" "satisfaction_level" "last_evaluation"
## [4] "number_project" "average_montly_hours" "time_spend_company"
## [7] "Work_accident" "left" "promotion_last_5years"
## [10] "sales" "salary" "sex"
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