Dear Adaikalavan and Marc, Thanks for advices. The answer in R-help archives is exactly what I'm needing.
Best regards, Rogério Adaikalavan Ramasamy wrote: >This has been answered at the following URL > >http://tolstoy.newcastle.edu.au/~rking/R/help/04/11/6695.html > > >On Tue, 2005-07-12 at 14:37 -0300, Rogério Rosa da Silva wrote: > > ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
