<[EMAIL PROTECTED]> writes: > I did not use R ten years ago, but "reasonable" RAM amounts have > multiplied by roughly a factor of 10 (from 128Mb to 1Gb), CPU speeds have > gone up by a factor of 30 (from 90Mhz to 3Ghz), and disk space availabilty > has gone up probably by a factor of 10. So, unless the I/O performance > scales nonlinearly with size (a bit strange but not inconsistent with my R > experiments), I would think that things should have gotten faster (by the > wall clock, not slower). Of course, it is possible that the other > components of the R system have been worked on more -- I am not equipped > to comment...
I think your RAM calculation is a bit off. in late 1993, 4MB systems were the standard PC, with 16 or 32 MB on high-end workstations. Comparable figures today are probably 256MB for the entry-level PC and a couple GB in the high end. So that's more like a factor of 64. On the other hand, CPU's have changed by more than the clock speed; in particular, the number of clock cycles per FP calculation has decreased considerably and is currently less than one in some circumstances. -- O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html