Phil, That's perfect. (For my application, I've never seen a tie. While possible, the likelihood is almost none.)
Thanks! -- Noah On 9/3/09 4:29 PM, Phil Spector wrote: > Noah - > max(x[-which.max(x)] will give you the second largest value, > but it doesn't handle ties. > x[order(x,decreasing=TRUE)[n]] will give you the nth largest > value, with the same caveat regarding ties. For example, > x[order(x,decreasing=TRUE)[1:3]] will give you the three largest > values. > > - Phil Spector > Statistical Computing Facility > Department of Statistics > UC Berkeley > spec...@stat.berkeley.edu > > > On Thu, 3 Sep 2009, Noah Silverman wrote: > >> Hi, >> >> I use the max function often to find the top value from a matrix or >> column of a data.frame. >> >> Now I'm looking to find the top 2 (or three) values from my data. >> >> I know that I could sort the list and then access the first two >> items, but that seems like the "long way". Is there some way to >> access "max_2" or similar? >> >> >> Thanks! >> >> -- >> Noah >> >> ______________________________________________ >> 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. >> [[alternative HTML version deleted]] ______________________________________________ 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.
