Displaying 2 results from an estimated 2 matches for "dupilcations".
2008 Aug 17
1
Wichmann-Hill Random Number Generator and the Birthday Problem
...andom samples (10M) and any duplicated
numbers are not desired.
We tried several RNGs in R and found Wichmann-Hill did not produce
duplications.
The duplication problem is the interesting birthday problem. If there are
M possible numbers, randomly draw N numbers from them,
the average number of dupilcations D = N(N-1)/2/M.
For Knuth-TAOCP and Knuth-TAOCP-2002, M=2^30, since this modulus is used.
D = 46566.12 for N=10M samples.
For Marsaglia-Multicarry, Super-Duper and Mersene-Twister, M=2^32. D =
11641.53 for N = 10M samples.
My testing results (see below) agree with above analysis. But for
Wich...
2005 Oct 19
3
Duplicated packages after yum crash
Hi,
I asked yum to update all packages on my CentOS 4.1 system and glibc
was among them. Yum crashed in the middle and now I've some packages
installed twice:
2 zlib-1.2.1.2-1.2
2 ncurses-5.4-13
2 mysql-4.1.10a-2.RHEL4.1
2 libstdc++-3.4.4-2
2 libstdc++-3.4.3-22.1
2 libselinux-1.19.1-7
2 libgcc-3.4.4-2
2 libgcc-3.4.3-22.1
2