Hi Your attachment came scrambled. Something wrong with dput?
anyway having > mat<-matrix(1:6, 3,2) > df<-as.data.frame(mat) >df$species<-letters[1:3] > df V1 V2 species a 1 4 a b 2 5 b c 3 6 c > library(reshape) > melt(df, id="species") species variable value 1 a V1 1 2 b V1 2 3 c V1 3 4 a V2 4 5 b V2 5 6 c V2 6 Gives probably what you want Petr > -----Original Message----- > From: Benjamin Gillespie [mailto:gy...@leeds.ac.uk] > Sent: Monday, September 24, 2012 2:53 PM > To: PIKAL Petr; r-help@r-project.org > Subject: RE: [R] List creation based on matrix > > Please see the attached .csv files for further info, > > Thanks guys, > > Ben Gillespie > Research Postgraduate > > School of Geography > University of Leeds > Leeds > LS2 9JT > > Tel: +44(0)113 34 33345 > Mob: +44(0)770 868 7641 > http://www.geog.leeds.ac.uk/ > ________________________________________ > From: PIKAL Petr [petr.pi...@precheza.cz] > Sent: 24 September 2012 13:39 > To: Benjamin Gillespie; r-help@r-project.org > Subject: RE: [R] List creation based on matrix > > Hi > > > -----Original Message----- > > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > > project.org] On Behalf Of benrgillespie > > Sent: Monday, September 24, 2012 1:20 PM > > To: r-help@r-project.org > > Subject: [R] List creation based on matrix > > > > Hi guys, > > > > It would be great if you could help me with this one... > > > > I'm looking to create a script to convert a matrix of species > > abundance > > e.g: > > > > <http://r.789695.n4.nabble.com/file/n4643978/species_matrix.jpg> > > > > into two vectors e.g: > > > > <http://r.789695.n4.nabble.com/file/n4643978/communitylist.jpg> > > > > ---------------- > > > > If you feel there is no easy answer to this and that it would be > > easier to do in excel or open office calc (or another program), > please > > let me > > Not much can be done easier in Excel. If you do not fail to provide > data you could get better answers. > > Regards > Petr > > > know. > > > > Thanks in advance for your help and let me know if you require any > > further information, > > > > Ben Gillespie (Research Postgrad) > > > > > > > > > > > > -- > > View this message in context: http://r.789695.n4.nabble.com/List- > > creation-based-on-matrix-tp4643978.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. ______________________________________________ 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.
