[SKK_DA1] 임시

  #  블로그에서 읽어

mycsv <- read.csv("https://t1.daumcdn.net/cfile/blog/26755B505919290F01?download", header=TRUE)
mycsv1 <- head(mycsv,10)[,c(1,10:13)]

mycsv1
t(mycsv1) # 가로 세로 변환 (행렬 바꾸기) transpose
mycsv2 <- mycsv1[,2:5]

 

 

 

 

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ggplot2 설치 오류 해결 링크

Error: package or namespace load failed for ggplot2 and for data.table

https://stackoverflow.com/questions/31717850/error-package-or-namespace-load-failed-for-ggplot2-and-for-data-table

remove.packages(c("ggplot2", "data.table"))

install.packages('Rcpp', dependencies = TRUE)

install.packages('ggplot2', dependencies = TRUE) install.packages('data.table', dependencies = TRUE)

강사평가 데이터

ev1 <- read.csv("

https://t1.daumcdn.net/cfile/blog/234509505919290D12?download

")

http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html