On Oct 23, 2012, at 1:25 PM, noobmin wrote: > AL AR CA NY > Doug 250 250 250 NA > Jennifer 20 340 300 100 > Michele 250 500 250 60 > Obama 15 45 520 600 > > My English is not very good, I'll try again. I want to list ALL states in > the country where Obama had greater contribution. The table above shows the > total contribution received by each candidate in a given state. To AL state > obama not received more than Doug. For the AR state he received no more than > others candidates. For the CA state he received a total of $ 520, which is > 520>300>250>=250 and should be selected. In NY also had the largest > contribution, $ 600, 600>100>60 and should therefore be selected. > > I want to make it to the N presidency candidates and M states of the > country. The table above is only an example.
Perhaps: > apply(dat, 2, function(x) x["Obama"] == max(x, na.rm=TRUE) ) AL AR CA NY FALSE FALSE TRUE TRUE Or perhaps: > names(dat)[ apply(dat, 2, function(x) x["Obama"] == max(x, na.rm=TRUE) ) ] [1] "CA" "NY" > > Sorry again, for me it was clear. = ( > Thanks > > > > -- > View this message in context: > http://r.789695.n4.nabble.com/How-to-use-tapply-with-more-than-one-variables-grouped-tp4646948p4647220.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. David Winsemius, MD Alameda, CA, USA ______________________________________________ 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.