str_replace_all() 替换所有匹配到的结果 str_replace(strings, phone, "XXX-XXX-XXXX") #> [1] "apple" #> [2] "XXX-XXX-XXXX" #> [3] "XXX-XXX-XXXX" #> [4] "Work: XXX-XXX-XXXX; Home: 543.355.3679" str_replace_all(strings, phone, "XXX-XXX-XXXX") #> [1] "apple" #> [2...
我们可以使用str_replace_all方法来替换某一列中的多个字符串。语法:str_replace_all(dataframe$column_name, c(“string1” = “new string”,……….., “stringn” = “new string”)例子:# load the library library(stringr) # create a dataframe with 3 columns data = data.frame(name1=c('java...
str_replace_all(string, pattern, replacement) # 和gsub一样,替换所有匹配字符 1. 2. fruits <- c("one apple", "two pears", "three bananas") str_replace(fruits, "[aeiou]", "-") #正则表达式,即对字符串中的小写字母a或e或i或o或u,替换为- # 结果 [1] "-ne apple" "tw- pears" "t...
4.字符检测:str_detect(x,"h"):重点掌握用法 5.字符串替换:str_replace()/str_replace_all() 6.字符删除:str_remove()/str_remove_all() 基础包里也有处理字符串函数,但是比较零散。 rm(list = ls()) if(!require(stringr))install.packages('stringr') library(stringr) 1.1 检测字符串长度 字符串...
str_replace_all() 替换所有匹配到的结果 str_replace(strings, phone, "XXX-XXX-XXXX") #> [1] "apple" #> [2] "XXX-XXX-XXXX" #> [3] "XXX-XXX-XXXX" #> [4] "Work: XXX-XXX-XXXX; Home: 543.355.3679" str_replace_all(strings, phone, "XXX-XXX-XXXX") ...