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.
