r - read.table和read.delim函数之间的区别

Question

R语言中的read.table()和read.delim()函数有什么区别？

Answer 1

当您不确定某个函数的功能时，除了阅读帮助页面外，您还可以检查该函数的实际代码。例如，输入read.delim显示该函数包含以下代码:

> read.delim
function (file, header = TRUE, sep = "\t", quote = "\"", dec = ".", 
    fill = TRUE, comment.char = "", ...) 
read.table(file = file, header = header, sep = sep, quote = quote, 
    dec = dec, fill = fill, comment.char = comment.char, ...)

因此，read.delim()只是read.table()的包装函数，具有默认参数值，在读取制表符分隔的数据时非常方便。它与调用完全相同:

read.table(file, header = TRUE, sep = "\t", quote = "\"", 
    dec = ".", fill = TRUE, comment.char = "")