The problem seems to be that at least two of the 90 rows of your matrix have the same rowname (called dimnames in a matrix). When you converted to .csv, the rownames were added as a variable (called X) so they were not checked for duplicates.
Try length(unique(test$X)). You should get a number less than 90. ---------------------------------------------- David L Carlson Associate Professor of Anthropology Texas A&M University College Station, TX 77843-4352 > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-bounces@r- > project.org] On Behalf Of PavloEs > Sent: Monday, November 12, 2012 1:09 PM > To: r-help@r-project.org > Subject: Re: [R] Matrix to data frame conversion > > May be I have not clearly explained my problem. Le me try it again. My > problem was with the matrix "comb_model0" . I have tried to convert it > to a > data frame (xx), but could not succeed . As a result I have exported it > to a > test.csv file and re-imported it. Data frame test is the product of > that > import. Thus my problem is with the matrix "comb_model0", the first > part of > my post, not the csv portion. > > > > -- > View this message in context: http://r.789695.n4.nabble.com/Matrix-to- > data-frame-conversion-tp4649311p4649331.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.
