perhaps? 2012-08-13 14:26 采纳率: 100%
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替换字符串中的特定字符

I would like to remove specific characters from strings within a vector, similar to the Find and Replace feature in Excel.

Here are the data I start with:

group <- data.frame(c("12357e", "12575e", "197e18", "e18947")

I start with just the first column; I want to produce the second column by removing the e's:

group       group.no.e
12357e      12357
12575e      12575
197e18      19718
e18947      18947

转载于:https://stackoverflow.com/questions/11936339/replace-specific-characters-within-strings

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  • 喵-见缝插针 2012-08-13 14:29
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    With a regular expression and the function gsub():

    group <- c("12357e", "12575e", "197e18", "e18947")
    group
    [1] "12357e" "12575e" "197e18" "e18947"
    
    gsub("e", "", group)
    [1] "12357" "12575" "19718" "18947"
    

    What gsub does here is to replace each occurrence of "e" with an empty string "".


    See ?regexp or gsub for more help.

    本回答被题主选为最佳回答 , 对您是否有帮助呢?
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