14.1 vectors (c)

c(1, 2, 3)
## [1] 1 2 3

c('a', 'b', 'c')
## [1] "a" "b" "c"

c(1L, 4L, 5L)
## [1] 1 4 5

c(4, 'd', TRUE, FALSE)
## [1] "4"     "d"     "TRUE"  "FALSE"

(my_vec <- c(1, 2, 3))
## [1] 1 2 3