我有一个字符串，我想删除所有非字母数字符号，然后放入一个矢量 . 所以这：
"This is a string. In addition, this is a string!"
会成为：
>stringVector1 "This","is","a","string","In","addition","this","is","a","string"
我看了 grep() 但找不到匹配的例子 . 有什么建议？
grep()
这是一个例子：
> str <- "This is a string. In addition, this is a string!" > str [1] "This is a string. In addition, this is a string!" > strsplit(gsub("[^[:alnum:] ]", "", str), " +")[[1]] [1] "This" "is" "a" "string" "In" "addition" "this" "is" "a" [10] "string"
1 回答
这是一个例子：