search for: cov_na1

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2009 Dec 13
2
O(N log N) Kendall Tau
...on of this algorithm to R. However, I have a few questions: 1. Would it likely be accepted if well-implemented? 2. cov.c in the main/ directory of the R source tree seems to contain at least 4 different but nearly identical implementations of Kendall's Tau: cov_complete1, cov_complete2, cov_na1, and cov_na2. I can't tell why. The file is very difficult to read because of its lack of comments, (ab)use of macros and improper indentation. As I will probably need to modify this file, can some seasoned veteran please explain what the heck is going on in this file?