对于提供给参数“ split”的字符向量的所有元素，strsplit不会拆分

Question

strsplit函数的R文档指出参数split “如果拆分的长度大于1，则将其沿x循环。”

我的意思是如果我使用以下代码

strsplit(x = "Whatever will be will be", split = c("ever", "be"))

...，我将x分为“ What”，“ will”和“ will be”。这不会发生。输出是“什么”和“将是”。

我误解了文档吗？另外，如何获得所需的结果？

Answer 1

如果x也有多个参数，则将拆分split中的参数：

strsplit(x = c("Whatever will be will be","Whatever will be will be"), 
         split = c("ever", "be"))
[[1]]
[1] "What"             " will be will be"

[[2]]
[1] "Whatever will " " will " 

我怀疑您期望的行为是通过|实现的：

strsplit(x = "Whatever will be will be", split = c("ever|be"))
[[1]]
[1] "What"   " will " " will "

Answer 2

split在x的元素中回收，因此split的第一个元素应用于x的第一个元素，第二个应用于第二个，依此类推。例如：

strsplit(x = c("Whatever will be will be", "Whatever will be will be"), split = c("ever", "be"))
[[1]]
[1] "What"             " will be will be"

[[2]]
[1] "Whatever will " " will "