在 r 中重复一些元素

Question

我有一个向量包含:

my.var <- c("a","b","c","d","e","f")
my.var
[1] "a" "b" "c" "d" "e" "f"

我只想使用 rep 和 seq 函数来获取输出:

"a" "b" "c" "b" "c" "d" "c" "d" "e" "d" "e" "f"

Answer 1

或者

x <- c("a","b","c","d","e","f")
n <- 3
x[seq_len(n)+rep(0:(length(x)-n), each=n)]
# [1] "a" "b" "c" "b" "c" "d" "c" "d" "e" "d" "e" "f"