R语言读取txt和csv只有1列时

多半是间隔符的问题

1. ?read.table

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1. read.table(file, header = FALSE, sep = "", quote = ""'",
2.            dec = ".", numerals = c("allow.loss", "warn.loss", "no.loss"),
3.            row.names, col.names, as.is = !stringsAsFactors, tryLogical = TRUE,
4.            na.strings = "NA", colClasses = NA, nrows = -1,
5.            skip = 0, check.names = TRUE, fill = !blank.lines.skip,
6.            strip.white = FALSE, blank.lines.skip = TRUE,
7.            comment.char = "#",
8.            allowEscapes = FALSE, flush = FALSE,
9.            stringsAsFactors = FALSE,
10.            fileEncoding = "", encoding = "unknown", text, skipNul = FALSE)
12. read.csv(file, header = TRUE, sep = ",", quote = """,
13.          dec = ".", fill = TRUE, comment.char = "", ...)
15. read.csv2(file, header = TRUE, sep = ";", quote = """,
16.           dec = ",", fill = TRUE, comment.char = "", ...)
18. read.delim(file, header = TRUE, sep = "\t", quote = """,
19.            dec = ".", fill = TRUE, comment.char = "", ...)
21. read.delim2(file, header = TRUE, sep = "\t", quote = """,
22.             dec = ",", fill = TRUE, comment.char = "", ...)

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sep	the field separator character. Values on each line of the file are separated by this character. If sep = "" (the default for read.table) the separator is ‘white space’, that is one or more spaces, tabs, newlines or carriage returns.

字段分隔符。文件中每一行的值都由该字符分隔。如果sep = "(read . table的默认值)分隔符是“空白”，即一个或多个空格、制表符、换行符或回车符。‘

1. data <-read.csv("file.csv",sep="\t",header=T)
3. data <-read.csv("file.csv",sep=",",header=T)

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