分隔 R 数据框列忽略引号中的逗号

Question

I am trying to split a data frame column delimiting on stand-alone commas but ignoring commas in single quotes. I have tried several things but can't get any to work.

Here is a simplified version of df :

V1
'914061', 'Palo Alto'
'930061', 'Brooklyn, New York, USA'

Desired output:

V1, V2
914061,Palo Alto
930061, Brooklyn, New York, USA (location in one cell)

I tried this but it split up Brooklyn and New York and USA (and returned a warning about vector length)

df2 <- data.frame(do.call('rbind',strsplit(as.character(df$V1),',',fixed=TRUE)))

I also tried this but get "Error in file(file, "rt") : invalid 'description' argument"

df2 <- read.delim(df$V1, header=F, sep=',', dec = '.', stringsAsFactors=F , quote = "\"" , fill = TRUE)

Answer 1

您在应该使用quote="'" quote='"'地方使用了quote='"' 。并强制read.csv将两列作为变量读取，而不是将一列转换为行名。

read.csv(df$V1, quote="'", row.names=NULL)