#integer
a <- 5L
typeof(a)## [1] "integer"#complex
b <- 3+2i
typeof(b)## [1] "complex"#chracter
c <- "william"
typeof(c)## [1] "character"d <- 4.7
typeof(d)## [1] "double"#logical
e <- T
typeof(e)## [1] "logical"#loical
f <- FALSE
typeof(f)## [1] "logical"