使用data.table :: fread读取文本文件

Question

当我使用函数readLines时，这样的数据。

我可以使用readLines获取此类数据，如何在data.table::fread中执行此操作。

train <- fread("./data/train_first.csv", encoding = 'UTF-8', quote="", fill=TRUE)

这是错误：

Error in fread("./data/train_first.csv", encoding = "UTF-8", fill = TRUE) : 
  Expecting 3 cols, but line 99771 contains text after processing all cols. Try again with fill=TRUE. Another reason could be that fread's logic in distinguishing one or more fields having embedded sep=',' and/or (unescaped) '\n' characters within unbalanced unescaped quotes has failed. If quote='' doesn't help, please file an issue to figure out if the logic could be improved.