Thank you all. Your suggestions solved the problem.
> 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. > > --------------------------------------------- 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.
