为什么字段分隔符只能是一个字节？ [英] Why the field separator character must be only one byte?

问题描述

data <- read.delim("C:\\test.txt", header = FALSE, sep = "$$$$$")
Error in scan(file, what = "", sep = sep, quote = quote, nlines = 1, quiet = TRUE,  : 
  invalid 'sep' value: must be one byte

为什么会有这样的限制？我可以克服吗？

Why there is a restriction like this? Can I overcome it?

推荐答案

这是一个潜在的解决方案。

Here is a potential solution.

假设文件中的行是这样的

Assuming this is what the lines in your file look like

1 $$$$$ 2 $$$$$ 3 $$$$$ 4

下面将创建一个变量并将其存储为字符的矩阵。

The following will create a matrix with the variables stored as characters.

do.call(rbind,strsplit(readLines('test.txt'),'$$$$$',fixed=T))

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