In chapter 2, we reviewed a wide range of methods for importing data into R. But there are times that you’ll want to go the other way—exporting data from R—so that data can be archived or imported into external applications. In this appendix, you’ll learn how to output an R object to a delimited text file, an Excel spreadsheet, or a statistical application (such as SPSS, SAS, or Stata).
You can use the write.table() function to output an R object to a delimited text file. The format is
write.table(x, outfile, sep=delimiter, quote=TRUE, na="NA")
where x is the object and outfile is the target file. For example, the statement
write.table(mydata, "mydata.txt", sep=",")
would save the ...