Hi, On Oct 23, 2009, at 11:36 AM, Peng Yu wrote:
The help on mahalanobis {stats} does not include any reference. I'm interested in understand why Mahalanobis is defined in its current way and how to use it. Could somebody point me a good book on this? I have looked through a few books, but they all give very light explanation on it.
The wikipedia page looks pretty good ... the "Intuitive Explanation" section should help:
http://en.wikipedia.org/wiki/Mahalanobis_distance Googling also provides many more explanations: http://matlabdatamining.blogspot.com/2006/11/mahalanobis-distance.html HTH, -steve -- Steve Lianoglou Graduate Student: Computational Systems Biology | Memorial Sloan-Kettering Cancer Center | Weill Medical College of Cornell University Contact Info: http://cbio.mskcc.org/~lianos/contact ______________________________________________ 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.