I gather you have an SQL background since those are SQL functions. Check out the sqldf R package and the many examples on the home page:
http://sqldf.googlecode.com and in ?sqldf That may ease the transition from SQL to R. On Mon, Apr 6, 2009 at 5:37 AM, calpeda <mauro.bias...@calpeda.it> wrote: > > Hi, > I ve been searching a lot in internet..but I can t find a solution > Attached, you find a file. > I need for each (Materiale, tpdv, UM) to find sum,avg and count > My idea was to aggregate for the 3 parameters ..but I don t know how to get > the numeric value (SUM,COUNT,AVG) I need. > Can you help me? > thank you > > http://www.nabble.com/file/p22905322/ordini2008_ex.txt ordini2008_ex.txt > -- > View this message in context: > http://www.nabble.com/SUM%2CCOUNT%2CAVG-tp22905322p22905322.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. > ______________________________________________ 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.
