Ilai, et. al: Yes. The OP might also look at the result of:
> t(simplify2array (by.list)) The only wrinkle here (with either rbind or simplify2array) is getting the labels correct if the design is not fully crossed -- i.e. if some groups are missing so that expand.grid() won't work. Then you might have to work harder to extract the information from by.list. > str(by.list) might help here. -- Bert On Tue, Oct 9, 2012 at 11:14 AM, ilai <ke...@math.montana.edu> wrote: > On Tue, Oct 9, 2012 at 11:42 AM, Rui Barradas <ruipbarra...@sapo.pt> wrote: > >> Hello, >> >> Try >> >> do.call(data.frame, by.list) >> >> > I don't think data.frame inside do.call works in this context. May need it > on the outside to do the job (Only OK here since there is no mixture of > numeric and character/factors in this summary). Something like > > by.list <- by(warpbreaks[, 1], warpbreaks[, -1], summary) > by.dtfrm <- data.frame( do.call( rbind, by.list ) ) > by.dtfrm <- cbind( do.call( expand.grid, attr( by.list, 'dimnames' ) ), > by.dtfrm ) > > > > > Hope this helps, >> >> Rui Barradas >> Em 09-10-2012 17:53, Jesus Frias escreveu: >> > Dear R-helpers, >> > >> > >> > >> > I've got a summary of results from a by() call that I am making with a >> list >> > of more than two of factors not very different from the example in the >> by() >> > help page >> > >> > >> > >> > require(stats) >> > >> > by(warpbreaks[, 1], warpbreaks[, -1], summary) >> > >> > >> > >> > The result of the command gives a list of the form >> > >> > >> > >> > wool: A >> > tension: L >> > Min. 1st Qu. Median Mean 3rd Qu. Max. >> > 25.00 26.00 51.00 44.56 54.00 70.00 >> > --------------------------------------------------- >> > wool: B >> > tension: L >> > Min. 1st Qu. Median Mean 3rd Qu. Max. >> > 14.00 20.00 29.00 28.22 31.00 44.00 >> > --------------------------------------------------- >> > >> > .... And so on. >> > >> > >> > >> > >> > >> > I would like to convert this result in to a flat data.frame with variable >> > names: >> > >> > >> > >> > Wool, Tension, Min, 1stQ, Median, Mean, 3rdQ, Max >> > >> > A, L , 25.00 26.00 51.00 44.56 54.00 70.00 >> > B, L, 14.00 20.00 29.00 28.22 31.00 44.00 >> > >> > .... >> > >> > >> > >> > >> > >> > Although I've tried the argument "simplify=T" I haven't been able to get >> > this converted. >> > >> > >> > >> > Is there a simple way to achieve this? >> > >> > >> > >> > Thanks in advance! >> > >> > >> > >> > Regards, >> > >> > >> > >> > Jesus >> > >> > >> > >> > Jesús María Frías Celayeta, PhD >> > >> > Ceann Cúntóir, Scoil Eolaíocht an Bhia agus Sláinte an Chomhshaoil >> > >> > Assistant Head, School of Food Science and Environmental Health, >> > >> > Coláiste Eolaíochtaí agus Sláinte/ College of Sciences and Health, >> > >> > Institiúid Teicneolaíochta Átha Cliath/ Dublin Institute of Technology, >> > >> > Sráid Chathal Brugha, Baile Átha Cliath 1, Éire/Cathal Brugha Street, >> Dublin >> > 1, Ireland >> > >> > F: +353-1-4024459 >> > >> > E: <mailto:james.cur...@dit.ie> jesus.fr...@dit.ie >> > >> > W: http://fseh.dit.ie/o4/StaffListing/JesusFrias.html >> > >> > >> > >> > >> > >> > >> > >> > Tá an teachtaireacht seo scanta ó thaobh ábhar agus víreas ag Seirbhís >> Scanta Ríomhphost de chuid Seirbhísí Faisnéise, ITBÁC agus meastar í a >> bheith slán. http://www.dit.ie >> > >> > This message has been scanned for content and viruses by the DIT >> Information Services E-Mail Scanning Service, and is believed to be clean. >> http://www.dit.ie >> > >> > >> > [[alternative HTML version deleted]] >> > >> > >> > >> > ______________________________________________ >> > 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. >> >> >> [[alternative HTML version deleted]] >> >> >> ______________________________________________ >> 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. >> >> > > [[alternative HTML version deleted]] > > > ______________________________________________ > 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. > -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm ______________________________________________ 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.
