我有一个data.table基础。我在这个data.table中有一个术语列
class(base$term)
[1] character
length(base$term)
[1] 27486
我可以从字符串中删除重音符号。我能够从字符串向量中删除重音符号。
iconv("Millésime",to="ASCII//TRANSLIT")
[1] "Millesime"
iconv(c("Millésime","boulangère"),to="ASCII//TRANSLIT")
[1] "Millesime" "boulangere"
但由于某些原因,当我在我的术语列上应用相同的功能时,它不起作用
base$terme[2]
[1] "Millésime"
iconv(base$terme[2],to="ASCII//TRANSLIT")
[1] "MillACsime"
有谁知道这里发生了什么?
在解决问题的方法上:
Encoding(base$terme[2])
[1] "UTF-8"
iconv(base$terme[2],from="UTF-8",to="ASCII//TRANSLIT")
[1] "Millesime"
感谢@nicola
您可以应用此功能
rm_accent <- function(str,pattern="all") {
if(!is.character(str))
str <- as.character(str)
pattern <- unique(pattern)
if(any(pattern=="Ç"))
pattern[pattern=="Ç"] <- "ç"
symbols <- c(
acute = "áéíóúÁÉÍÓÚýÝ",
grave = "àèìòùÀÈÌÒÙ",
circunflex = "âêîôûÂÊÎÔÛ",
tilde = "ãõÃÕñÑ",
umlaut = "äëïöüÄËÏÖÜÿ",
cedil = "çÇ"
)
nudeSymbols <- c(
acute = "aeiouAEIOUyY",
grave = "aeiouAEIOU",
circunflex = "aeiouAEIOU",
tilde = "aoAOnN",
umlaut = "aeiouAEIOUy",
cedil = "cC"
)
accentTypes <- c("´","`","^","~","¨","ç")
if(any(c("all","al","a","todos","t","to","tod","todo")%in%pattern)) # opcao retirar todos
return(chartr(paste(symbols, collapse=""), paste(nudeSymbols, collapse=""), str))
for(i in which(accentTypes%in%pattern))
str <- chartr(symbols[i],nudeSymbols[i], str)
return(str)
}