adsp_7

getwd() setwd(“C:/data”) getwd() data<-read.csv(“data1.csv”) data read.csv(“mtcars.csv”)

data(iris) head(iris) # iris 데이터셋의 처음 6행 출력

tail(iris) tail(iris,3)

df<-read.csv(“mtcars.csv”) head(df) tail(df) str(df)

dim(iris) ls(iris)

rm(list = ls()) ls()

mean(mtcars\(mpg) median(mtcars\)mpg) var(mtcars\(mpg) sd(mtcars\)mpg) sum(mtcars\(mpg) range(mtcars\)mpg) max(mtcars\(mpg) min(mtcars\)mpg) quantile(mtcars\(mpg) IQR(mtcars\)mpg)

summary(iris)