You're posting on Nabble, so we don't see earlier messages in the thread here.
-- Bert On Tue, Oct 23, 2012 at 11:36 AM, noobmin <pseudov...@hotmail.com> wrote: > The criteria is to list where Obama has a higher number of contributions. The > table shows the number of contribution that each presidential candidate > received in a state of the country. > > The table shown is an example, the query should be generic to a database > with hundreds of candidates and dozens of states of the country. The > original base has 450 mb, in real database I'm don't know how many contry > states Obama has more donations, but in sample is in CA and NA. Michelle > wins more contribution on AR.... > > Thanks > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/How-to-use-tapply-with-more-than-one-variables-grouped-tp4646948p4647196.html > Sent from the R help mailing list archive at Nabble.com. > > ______________________________________________ > 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. -- Bert Gunter Genentech Nonclinical Biostatistics Internal Contact Info: Phone: 467-7374 Website: http://pharmadevelopment.roche.com/index/pdb/pdb-functional-groups/pdb-biostatistics/pdb-ncb-home.htm ______________________________________________ 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.