How to read and write files in R language

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In R, what if we want to read files from the outside world or write files to a specific path?

To read a file, we can use the read.table function; to write a file, we can use the write.table function.

Read.table(file, header = FALSE, sep = "", quote = "\"", dec = ". ", numerals = c("allow.loss", "warn.loss", "no.loss"), row.names, col.names, as.is = ! stringsAsFactors, na.strings = "NA", colClasses = NA, nrows = -1, skip = 0, check.names = TRUE, fill = ! blank.lines.skip, strip.white = FALSE, blank.lines.skip = TRUE, comment.char = "#", allowEscapes = FALSE, flush = FALSE, stringsAsFactors = default.stringsAsFactors(), fileEncoding = "", encoding = "unknown", text, skipNul = FALSE)

Each parameter has its own meaning, among which the more commonly used are header,sep, etc.

file is the name of the file we read;header, set to T or F, whether to define the first line as header;sep is to set the delimiter in the file. Let's look at an example:

mydata