transform(DF, District_Unique = paste(Province, District, collapse = '')) On Thu, Jan 21, 2010 at 12:34 AM, teurlai magali <teurlai...@yahoo.fr> wrote: > Hi > > is there a way in R to create a new column vector with the numbers of 2 > others columns simply appended? > > Example : I have a column with provinces codes (1 to 19) > I have a second column with districts codes (1 to ##, depending on the > province) > I want to create a third column with a code that would be unique for each > district: > > Province District District_Unique > 1 1 11 > 1 2 12 > 13 2 132 > > I can create a loop, but it becomes complicated with numerous data > > Thanks for your help > > > > > > [[alternative HTML version deleted]] > > > ______________________________________________ > 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. > >
-- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O ______________________________________________ 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.