On 18 September 2009 at 17:11, Don MacQueen wrote: | I'd suggest using Rprof to find out where the cpu time is being | spent.
Seconded. Profiling should help you. Some other ideas: -- look at the data.table package (on CRAN) by Matt Dowle which he uses as a fast lookup 'database alternative' -- look at bigmemory (on CRAN) by Kane and Emerson which uses external pointer to keep one (big) object you could even share between R processes. -- there's always plain old matrix as an alternative too Dirk -- Three out of two people have difficulties with fractions. ______________________________________________ [email protected] 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.
