将dan替换为，而不是daniel [重复]

Question

此问题已经在这里有了答案：

• Using grep in R to find strings as whole words (but not strings as part of words)2个答案

name <- "DANIAL DAN AMIN"gsub("DAN", "AND", name)结果将是这样[1] ANDIAL AND AMIN

我想要这样的结果[1] DANIAL AND AMIN

Answer 1

向其添加单词边界（\\b），然后使用gsub

gsub("\\bDAN\\b", "AND", name)
#[1] "DANIAL AND AMIN"