r - "invalid regular expression…reason ' R中带有gsub的反斜杠'''错误

Question

我在替换R中的文本时收到错误消息。

 x
 [1] "Easy bruising and bleeding.\\"

gsub(as.character(x), "\\", "")
Error in gsub(as.character(x), "\\", "") : 
   invalid regular expression 'Easy bruising and bleeding.\', reason 'Trailing backslash'

Answer 1

参数的顺序错误。研究help("gsub")。

gsub( "\\", "", "Easy bruising and bleeding.\\", fixed=TRUE)
#[1] "Easy bruising and bleeding."