Please, no. It is already annoying enough that levels are sorted when creating a factor. Don't compound it by extending this to other functions.
In concept the order of the levels of a factor is irrelevant (although in practice it makes a big difference, e.g. when plotting). If so, then why is alphabetic order preferred over any other? Why not leave them in the order the user provided? Rich Raubertas Merck & Co. > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of > Albrecht, Dr. Stefan (AZ Private Equity Partner) > Sent: Thursday, April 19, 2007 11:39 AM > To: [email protected] > Subject: [R] rbind() of factors in data.frame [Broadcast] > > Dear all, > > I would like to inquire, if it is a desired feature that the > combination with rbind() of two data frames with factors > columns does not sort the factors levels of the combined data frame. > > > str(rbind(data.frame(a = factor(c(4, 3))), data.frame(a = > factor(c(2, 1))))) > 'data.frame': 4 obs. of 1 variable: > $ a: Factor w/ 4 levels "3","4","1","2": 2 1 4 3 > > I would expect the combined factor levels to be sorted, as > long as both factors are not ordered. > > With many thanks and best regards, > Stefan > > > ____________________________________ > Dr. Stefan Albrecht, CFA > Allianz Private Equity Partners GmbH > Königinstr. 19 | 80539 Munich | Germany > > Phone: +49.(0)89.3800.18317 > Fax: +49.(0)89.3800.818317 > EMail: [EMAIL PROTECTED] > <mailto:[EMAIL PROTECTED]> > Web: www.apep.com <http://www.apep.com/> > > > Allianz Private Equity Partners GmbH | Geschäftsführung: Wan > Ching Ang, Karl Ralf Jung > Sitz der Gesellschaft: München | Registergericht: München HRB > 126221 | Ust-ID-Nr.: DE 813 264 786 > > > > [[alternative HTML version deleted]] > > ------------------------------------------------------------------------------ Notice: This e-mail message, together with any attachments,...{{dropped}} ______________________________________________ [email protected] 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.
