Hi Manuel, You can use the function "paste" paste(col1,col2.col3,col4, sep = "")
in a new data frame. data.frame( col1 = paste(col1,col2.col3,col4, sep = ""), col2 = col5, col3 = col6) I think it will work Yu-Chun 2013/3/27 Manuel Spínola <mspinol...@gmail.com>: > Thank you very much to all that answered my question, some one of you asked > me to be more specific, here is my question again: > > I hava a data frame: > > col1 col2 col3 col4 col5 col6 > 0 1 1 0 a c > 1 0 0 0 a d > 0 1 1 1 b d > > I want to end with a data frame like this (the first 4 columns without > space): > > 0110 a c > 1000 a d > 0111 b d > > > Best, > > Manuel > > > > 2013/3/26 Roman Luštrik <roman.lust...@gmail.com> > >> How do you want to remove the space, so that when you print a data frame >> that the columns are closer together? Pr perhaps you're trying to merge >> column names into a single string? Perhaps something third? Can you expand >> your answer? >> >> Cheers, >> Roman >> >> >> >> 2013/3/27 Manuel Spínola <mspinol...@gmail.com> >> >>> Dera list members, >>> >>> How to remove spaces among columns in a data frame. >>> >>> 1 2 3 4 to become 1234 >>> >>> Best, >>> >>> Manuel >>> >>> -- >>> *Manuel Spínola, Ph.D.* >>> >>> Instituto Internacional en Conservación y Manejo de Vida Silvestre >>> Universidad Nacional >>> Apartado 1350-3000 >>> Heredia >>> COSTA RICA >>> mspin...@una.ac.cr >>> mspinol...@gmail.com >>> Teléfono: (506) 2277-3598 >>> Fax: (506) 2237-7036 >>> Personal website: Lobito de río < >>> https://sites.google.com/site/lobitoderio/> >>> Institutional website: ICOMVIS <http://www.icomvis.una.ac.cr/> >>> >>> [[alternative HTML version deleted]] >>> >>> >>> _______________________________________________ >>> R-sig-ecology mailing list >>> R-sig-ecology@r-project.org >>> https://stat.ethz.ch/mailman/listinfo/r-sig-ecology >>> >>> >> >> >> -- >> In God we trust, all others bring data. >> > > > > -- > *Manuel Spínola, Ph.D.* > Instituto Internacional en Conservación y Manejo de Vida Silvestre > Universidad Nacional > Apartado 1350-3000 > Heredia > COSTA RICA > mspin...@una.ac.cr > mspinol...@gmail.com > Teléfono: (506) 2277-3598 > Fax: (506) 2237-7036 > Personal website: Lobito de río <https://sites.google.com/site/lobitoderio/> > Institutional website: ICOMVIS <http://www.icomvis.una.ac.cr/> > > [[alternative HTML version deleted]] > > > _______________________________________________ > R-sig-ecology mailing list > R-sig-ecology@r-project.org > https://stat.ethz.ch/mailman/listinfo/r-sig-ecology > _______________________________________________ R-sig-ecology mailing list R-sig-ecology@r-project.org https://stat.ethz.ch/mailman/listinfo/r-sig-ecology