多个字符串替换,在R中使用gsubfn()

Question

我想替换:

(1)", "(逗号+空格)带"_"(下划线)

(2)"'"(撇号)与"'s"(撇号+ s)

library(gsubfn)
x <- c("Mary' car is red.", "A, B, C")
gsubfn(".", list(", " = "_", "'" = "'s"), x)

我想是"Mary's car is red."和"A_B_C",但结果却是"Mary's car is red."和"A, B, C".为什么？

Answer 1

试试这个:

toreplace<-list(", " = "_", "'" = "'s")
gsubfn(paste(names(toreplace),collapse="|"),toreplace,x)
#[1] "Mary's car is red." "A_B_C"

你的方法的问题是你的模式只是一个单一的字符(.)并且无法匹配", ".