search for: kpginv

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2012 Dec 12
3
R-2.15.2 changes in computation speed. Numerical precision?
...review my notes in http://pj.freefaculty.org/scraps/profile/qrginv.R). So I asked WIndows users for more detailed feedback, including sessionInfo(), and I noticed that my proposed algorithm is not faster on Windows--WITH OLD R! Here's the script output with R-2.15.0, shows no speedup from the KPginv algorithm http://pj.freefaculty.org/scraps/profile/prof-puzzle-1-Windows.Rout On the same machine, I updated to R-2.15.2, and we see the same speedup from the KPginv algorithm http://pj.freefaculty.org/scraps/profile/prof-puzzle-1-CRMDA02-WinR2.15.2.Rout After that, I realized it is an R versio...