solve()函数在 Revolution R 4.0 里运行速度很慢，不知道为什么？
solve() is too slow in Revolution R 4.0
http://forums.revolutionanalytics.com/showthread.php?1088-solve()-is-too-slow-in-Revolution-R-4.0
in Revolution R 4.0:
> a <- diag(rep(100,1000))
> system.time(tmp<-solve(a))
user system elapsed
1.36 0.02 1.03
but in R version 2.11.0 (2010-04-22):
> a <- diag(rep(100,1000))
> system.time(tmp<-solve(a))
user system elapsed
0.14 0.03 0.20
mycomputer:
OS: windows vista 32bit
Memory: 4GB
CPU: AMD 64 X 2 Dual Core 5000+
Why solve() function so slow in Revolution R 4.0?
