R: str_split_fixed 是否可以按各种字符拆分？

Question

我有一个字符串，我想将其分成不同的部分。

test = c("3 CH • P" ,"9 CH • P" , "2 CH • P" , "2 CH, 5 ECH • V",                 
 "3 ECH • V",  "4 ECH • P" )

我知道使用 stringr() 中的 str_split_fixed() 我可以根据某个字符拆分字符串。例如：

test.1 = str_split_fixed(test, c("•"), 2)
> test.1
     [,1]           [,2]
[1,] "3 CH "        " P"
[2,] "9 CH "        " P"
[3,] "2 CH "        " P"
[4,] "2 CH, 5 ECH " " V"
[5,] "3 ECH "       " V"
[6,] "4 ECH "       " P"

但是，我想知道是否可以设置多个字符（例如"•"和","）来拆分字符串？

Answer 1

您可以尝试使用 gsub 来摆脱 • 的：

test <- c("3 CH • P" ,"9 CH • P" , 
          "2 CH • P" , "2 CH, 5 ECH • V",                 
          "3 ECH • V",  "4 ECH • P" )

test_sub <- gsub("•", ",", test)

str_split_fixed(test_sub, "[, ]+", n = 5)

#or, use this version with an unfixed length:
strsplit(test_sub, "[, ]+")

This thread 关于字符串拆分可能有用也可能没用。

R: str_split_fixed 是否可以按各种字符拆分？

R: Is it possible to split according to various characters with str_split_fixed?

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