논문작성에 필요한 R ggplot2 데이터 시각화 Ch1. R dplyr 활용 0. 데이터 불러오기 다운로드 링크 : https://www.kaggle.com/daiearth22/uniqlo-fastretailing-stock-price-prediction x STOCK = read.csv ( "C:/R/uniqlo-fastretailing-stock-price-prediction/Uniqlo(FastRetailing) 2012-2016 Training - stocks2012-2016.csv" ) STOCK $ Date = as.Date ( STOCK $ Date ) STOCK $ Year = as.factor ( format ( STOCK $ Date , "%Y" )) STOCK $ Day = as.factor ( format ( STOCK $ Date , "%a" )) str ( STOCK ) xxxxxxxxxx > str ( STOCK ) 'data.frame' : 1226 obs. of 9 variables : $ Date : Date , format : "2016-12-30" "2016-12-29" ... $ Open : int 42120 43000 43940 43140 43310 43660 43900 42910 42790 43350 ... $ High : int 42330 43220 43970 43700 43660 43840 44370 43630 43150 43550 ... $ Low : int 41700 42540 43270 43140 43090 43...