Steve Jaffe wrote: > hmm, that is what I was afraid of. I considered that but thought to myself, > surely there must be an easier way. I wonder why this feature isn't > available. It's there in scripting languages, like perl, but also in > "hardcore" languages like C++ where std::sort and sorted containers allow > the user to provide a comparison function (even for builtin types like int). > It's hard to believe that you have to jump through more hoops to do a custom > sort in R than in C++ ... > > > You put a class on the vector... >
there has been some discussion on sorting here some time ago; r folks do not seem to accept the idea of sorting as a generic task, with the sorting algorithm a separate thing from the comparison operator and the type of the elements to be sorted. (hence you can't sort arbitrary lists, for example.) you may want to lookup the archives. vQ ______________________________________________ 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.
