Hello, Thanks to all for the previus answer. I want to be more detailed: I have a dataset called gm20011231 with 1304 observations (or records). I want to create a subset with the followin command j2<-gm20011231[1:10,"V4"] the levels of "V4" is 1304 and the and the length(j2) is 10. Do you know how to obtain a j2 with level 10? Thank you Fabrizio --------------------------------------------------------------- Fabrizio De Amicis IT Department Generali Information Technologies - (GIT) Centro Galleria 2, Via Cantonale CH - 6928 Manno - Switzerland Tel +41 91 806 6220 Fax +41 91 806 6298 E-mail: fabrizio.deamicis at git.generali.ch ************************************************************************ The information in this email is confidential and may be legally... {{dropped}}
De Amicis Fabrizio (G.I.T.) wrote:> Hello, > > Thanks to all for the previus answer. I want to be more detailed: > > I have a dataset called gm20011231 with 1304 observations (or records). > > I want to create a subset with the followin command > > j2<-gm20011231[1:10,"V4"] > > the levels of "V4" is 1304 and the and the length(j2) is 10. > > Do you know how to obtain a j2 with level 10? > > Thank you > FabrizioI don't know why you are going to do that, but you can change the levels with level(), see ?level for details. Uwe Ligges