Hi Ben it's working good except no values of 4th column in output. And also if the file is large I'm getting the following error.
Error in pf(q, df1, df2, lower.tail, log.p) : Non-numeric argument to mathematical function I rechecked if I have any non numeric arguments the defined columns. Inputfile is good. Any suggestions on this. Thanx -- View this message in context: http://r.789695.n4.nabble.com/liner-regression-for-multiple-keys-tp1839105p2066051.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.