If you original read in the data with read.table, use its row.names=NULL argument so it doesn't turn the first character column with no duplicated entries into the row.names.
> d <- read.table(text=" + CAP beta0 beta1 pvalor Crom + rs17 158.5980 12.252462 9.083193e-135 1 + rs46 163.3730 3.304276 3.279925e-06 1 + rs63 162.7924 2.084678 5.023893e-06 1 + rs24 162.4252 1.837208 5.509042e-06 1 + ",sep="",header=TRUE, row.names=NULL) > d CAP beta0 beta1 pvalor Crom 1 rs17 158.5980 12.252462 9.083193e-135 1 2 rs46 163.3730 3.304276 3.279925e-06 1 3 rs63 162.7924 2.084678 5.023893e-06 1 4 rs24 162.4252 1.837208 5.509042e-06 1 Bill Dunlap Spotfire, TIBCO Software wdunlap tibco.com > -----Original Message----- > From: r-help-boun...@r-project.org [mailto:r-help-boun...@r-project.org] On > Behalf > Of arun > Sent: Wednesday, August 08, 2012 3:06 PM > To: Silvano Cesar da Costa > Cc: R help > Subject: Re: [R] NULL column > > HI, > Try this: > > > dat1<-read.table(text=" > beta0 beta1 pvalor Crom > rs17 158.5980 12.252462 9.083193e-135 1 > rs46 163.3730 3.304276 3.279925e-06 1 > rs63 162.7924 2.084678 5.023893e-06 1 > rs24 162.4252 1.837208 5.509042e-06 1 > ",sep="",header=TRUE) > dat2<-data.frame(new=rownames(dat1),dat1) > > rownames(dat2)<-1:nrow(dat2) > > dat2 > # new beta0 beta1 pvalor Crom > #1 rs17 158.5980 12.252462 9.083193e-135 1 > #2 rs46 163.3730 3.304276 3.279925e-06 1 > #3 rs63 162.7924 2.084678 5.023893e-06 1 > #4 rs24 162.4252 1.837208 5.509042e-06 1 > > > A.K. > > > > ----- Original Message ----- > From: Silvano Cesar da Costa <silv...@uel.br> > To: r-help@r-project.org > Cc: > Sent: Wednesday, August 8, 2012 3:22 PM > Subject: [R] NULL column > > Hi, > > I have a dataset where the first column has no name. > > I would like to assign a name to this column to be able to use it > > something like: > > Cap <- NULL > > > How can I do this? > > beta0 beta1 pvalor Crom > rs17 158.5980 12.252462 9.083193e-135 1 > rs46 163.3730 3.304276 3.279925e-06 1 > rs63 162.7924 2.084678 5.023893e-06 1 > rs24 162.4252 1.837208 5.509042e-06 1 > > > How can I do this? > > > Thanks, > > > --------------------------------------------- > Silvano Cesar da Costa > > Universidade Estadual de Londrina > Centro de Ciências Exatas > Departamento de Estatística > > Fone: (43) 3371-4346 > > ______________________________________________ > 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. ______________________________________________ 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.
