Dear All, Suppose you have a distance matrix stored like a dist object, for instance
x<-rnorm(20) y<-rnorm(20) mm<-as.matrix(cbind(x,y)) dst<-(dist(mm)) Now, my problem is the following: I would like to get the rows of mm corresponding to points whose distance is always larger of, let's say, 0.9. In other words, if I were to compute the distance matrix on those selected rows of mm, apart from the diagonal, I would get all entries larger than 0.9. Any idea about how I can efficiently code that? Regards Lorenzo ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.
