如何在引号内拆分元素

Question

我想分开角色：

v <- "a, b, c, d"

因此，向量的长度为4

v <- c("a", "b", "c", "d")

Answer 1

unlist()将列表转换为字符数组

 v = unlist(as.vector(strsplit(x = v, split = ",")))