Thank Berend, It seems like that it is better to attach a PDF file for avoiding messy code.
Yes, I want to obtain is Tanimoto coefficient and your web site "wikipedia" is about this coefficient. I also search R site about tanimoto coefficient and learn it more. About your code, I has saved and learned it. Thanks again Kevin -- View this message in context: http://r.789695.n4.nabble.com/how-to-replace-my-double-for-loop-which-is-little-efficient-tp3164222p3164920.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.
