rep() 每个都等于一个向量 [英] rep() with each equals a vector

问题描述

我有关于序列和 each 的快速问题:

I have quick question regarding sequence and each:

vect1 <- c(4, 5, 10, 3, 1)

我想用这个向量进行复制，使得第一个数字被复制 4、第二个 5、第三个 10、第四个 3 和第五个等于 1.

I want replicate with this vector as each such that first number is replicated 4, second 5, third 10, fourth 3, and fifth equal 1.

rep(1:5, each = vect1) 
 [1] 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5
Warning message:
In rep(1:5, each = vect1) : first element used of 'each' argument

rep(1:5, each = c(4, 5, 10, 3, 1)) 

    [1] 1 1 1 1 2 2 2 2 3 3 3 3 4 4 4 4 5 5 5 5
    Warning message:
    In rep(1:5, each = c(4, 5, 10, 3, 1)) :
      first element used of 'each' argument

我知道这是对每个的滥用.

I know this is misuse of each.

推荐答案

rep(1:5, vect1)

如果您对如何在 R 中使用函数有疑问，请尝试

If you have questions about how to work functions in R, try

?function

其中函数"是您想了解的任何函数.从 ?rep 你会读到:

where "function" is whatever function you want to know about. From ?rep you would have read:

'times' 一个整数向量，给出(非负)重复次数每个元素 if 的长度为 length(x)，或者重复整个向量 if长度为 1.负值或 NA 值是错误的.

'times' A integer vector giving the (non-negative) number of times to repeat each element if of length length(x), or to repeat the whole vector if of length 1. Negative or NA values are an error.

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