[R] huge speed up in R 1.90 alpha

Jason Liao jg_liao at yahoo.com
Fri Mar 19 23:53:32 CET 2004


I have a microarray analysis program using Monte Carlo Markov chain. I
downloaded R 1.9 alpha and saw FOUR times increase in speed.
Completelyly amazing. Specifically, one iteration takes 44 seconds
under R 1.8.1 and only 10 seconds under R 1.9.0 alpha. I have averaged
over many iterations so hopefully this is something real. The operating
system is Win 2000 on a Pentium III 1.16 Mhs laptop.



=====
Jason G. Liao, Ph.D.
Division of Biometrics
University of Medicine and Dentistry of New Jersey
335 George Street, Suite 2200
New Brunswick, NJ 08903-2688
phone 732-235-5429, fax (732) 235-5464
http://www.geocities.com/jg_liao




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