使用BOM读取UTF-8文本文件 [英] Read a UTF-8 text file with BOM

问题描述

我有一个带有字节顺序标记（U + FEFF）的文本文件。我试图读取R中的文件。是否可以避免字节顺序标记？

I have a text file with Byte order mark (U+FEFF) at the beginning. I am trying to read the file in R. Is it possible to avoid the Byte order mark?

函数 fread （ data.table 包）读取该文件，但在第一个开头添加ļ»æ变量名称：

The function fread (from the data.table package) reads the file, but adds ļ»æ at the beginning of the first variable name:

> names(frame_pers)[1]
[1] "ļ»æreg_date"

是 read.csv 函数。

目前我已经创建了一个函数， ，但我相信应该有一个方法如何自动删除BOM。

Currently I have made a function which removes the BOM from the first column name, but I believe there should be a way how to automatically strip the BOM.

remove.BOM <- function(x) setnames(x, 1, substring(names(x)[1], 4))

> names(frame_pers)[1]
[1] "ļ»æreg_date"
> remove.BOM(frame_pers)
> names(frame_pers)[1]
[1] "reg_date"

R会话的本地编码：

> options("encoding" = "")
> options("encoding")
$encoding
[1] ""

推荐答案

您是否尝试过 read.csv（...，fileEncoding =UTF-8-BOM）？ ？file 说：

从R 3.0.0开始编码' -8-BOM'，并删除
a字节顺序标记（如果存在的话，它通常是由Microsoft应用程序生成的文件和网页
）。

As from R 3.0.0 the encoding ‘"UTF-8-BOM"’ is accepted and will remove a Byte Order Mark if present (which it often is for files and webpages generated by Microsoft applications).

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