Dear Menne/ Jorge Many thanks for the help rendered by you both.
Now, may I augment my problem. While running the regressions (through 'for' loop), I tried to generate time series plots for each iteration. Although the summary results from regressions were saved in the output file (through sink() statement), yet the plots were not saved. The tried code was: x=read.table("sample.txt",header=T,sep="\t") out="output.txt" sink(out) x nm = names(x) nm for (i in 1:2) { for(j in (i+1):3) { formula= as.formula(paste(nm[i]," ~ ",nm[j],sep="")) slr=lm(formula, data=x) smr=summary(slr) print(smr) fit=fitted(slr) tsp=ts.plot(fit) } } sink() Kindly help to get the plots saved, preferably in separate output files for each iteration. regards ajss --- On Sun, 19/10/08, Dieter Menne <[EMAIL PROTECTED]> wrote: > From: Dieter Menne <[EMAIL PROTECTED]> > Subject: Re: [R] Getting names of variables without quotes > To: [EMAIL PROTECTED] > Date: Sunday, 19 October, 2008, 9:29 PM > Amarjit Singh Sethi <set_alt <at> yahoo.co.in> > writes: > > (Please do not use tabs when sending a data sample, these > must be > manually edited) > > V1,V2,V3 > 15,10,4 > 6,4,7 > 10,5,2 > 8,6,6 > > This does the work. However, I fear that you are going to > use it on > 100 variables, and I would strongly advice againts > searching for > linear relations > that way. > > Dieter > > x=read.table("sample.txt",header=T,sep=",") > nm = names(x) > for (i in 1:2) > { > for(j in (i+1):3) # note that you need the ()! > { > formula= > as.formula(paste(nm[i],"~",nm[j],sep="")) > slr=lm(formula, data=x) > smr=summary(slr) > print(smr) > } > } > > ______________________________________________ > 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. Send free SMS to your Friends on Mobile from your ______________________________________________ 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.