R 기초

3+2;3-2

## [1] 5

## [1] 1

3*2

## [1] 6

x=5
x

## [1] 5

x=c(1,10) y=c(“사과”,“멜론”) xy=c(x,y) xy

seq(from=1,to=5,by=1)

seq(1,5,1) sequence(3)

rep(c(“a”,“b”),time=2) rep(c(“a”,“b”),time=2,each=3) x=c(1,2,3) mode(x) is.numeric(x) x=c(“a”, “b”, “c”) x[-1] x[2]

x=c(1,2,3) y=c(4,5,6) x+y x*y x/y x=c(1,2,3) y=c(1,2,3,4,5,6) x+y

x=c(23,44,66,34,56,78,97,53,24,57,34,678,643,1344) sum(x)

x<-seq(1:10) sum(x)