R：コンマ

Question

例

string <- "field1,field2,\"there is a , in field3\", field4, \"2,456\", field6" 

負の試みに応じて、カンマを含む文字列を分割する方法：カンマを含むフィールドが\" ... \"の間であることを

test <- unlist(strsplit(noquote(string), ",")) 
test <- gsub("[^A-Za-z0-9' ']", "", test) 
gsub("^\\s+|\\s+$", "", test) 

[1] "field1"  "field2"  "there is a" "in field3" 
[5] "field4"  "2"   "456"  "field6"  

注意を。

Answer 1

read.table関数は、引用符で囲まれたカンマを無視します。

string <- "field1,field2,\"there is a , in field3\", field4, \"2,456\", field6" 

desired_result <- read.table(text=string, sep=",")