You are totally right David! Thank you so much for your correction! Best regards, Jorge
On Tue, Jul 28, 2009 at 11:34 PM, David Winsemius <> wrote: > That did not actually deliver the requested results because it bound before > it unique-ed. > > > unique(do.call(rbind,z)) > [,1] [,2] > [1,] 11 0 > [2,] 9 0 > [3,] 10 1 > [4,] 7 1 > > I found it necessary to do a bit more list processing before the rbind: > > > do.call( rbind, lapply(z, function(x) x[!duplicated(x[,1]), ] ) ) > [,1] [,2] > [1,] 11 0 > [2,] 9 0 > [3,] 10 1 > [4,] 7 1 > [5,] 10 1 > > -- > David Winsemius > > > On Jul 28, 2009, at 6:29 PM, Jorge Ivan Velez wrote: > > Dear Kathryrn, >> Here is one way: >> >> unique(do.call(rbind,z)) >> >> See ?unique, ?do.call and ?rbind for more information. >> >> HTH, >> >> Jorge >> >> >> On Tue, Jul 28, 2009 at 6:21 PM, kathie <> wrote: >> >> >>> Dear R users... >>> >>> >>> I have a list, "z", below. >>> >>> >>> z<-list(matrix(c(11,11,9,0,0,0),3,2),matrix(c(10,10,10,1,1,1),3,2), >>> matrix(c(7,10,1,1),2,2)) >>> >>> z >>>> >>> [[1]] >>> [,1] [,2] >>> [1,] 11 0 >>> [2,] 11 0 >>> [3,] 9 0 >>> >>> [[2]] >>> [,1] [,2] >>> [1,] 10 1 >>> [2,] 10 1 >>> [3,] 10 1 >>> >>> [[3]] >>> [,1] [,2] >>> [1,] 7 1 >>> [2,] 10 1 >>> >>> >>> From the list, I need to remove duplicated rows based on the 1st column >>>> in >>>> >>> each "z" element, and then eventually make one matrix as followings; >>> >>> [,1] [,2] >>> [1,] 11 0 <---- from z[1] >>> [2,] 9 0 <---- from z[1] >>> [3,] 10 1 <---- from z[2] >>> [4,] 7 1 <---- from z[3] >>> [5,] 10 1 <---- from z[3] >>> >>> Any comments will be greatly appreciated. >>> >>> Regards, >>> >>> Kathyrn Lord >>> >>> >>> >>> -- >>> View this message in context: >>> >>> http://www.nabble.com/make-one-matirx-in-list-after-removing-duplicated-rows-tp24708937p24708937.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. >>> >>> >> [[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. >> > > David Winsemius, MD > Heritage Laboratories > West Hartford, CT > > [[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.
