Random[BinomialDistribution[..]] wrong ?
- To: mathgroup at christensen.cybernetics.net
- Subject: [mg1051] Random[BinomialDistribution[..]] wrong ?
- From: bzbkowal at zib-berlin.de (Axel Kowald)
- Date: Fri, 12 May 1995 13:50:41 -0400
- Organization: Konrad Zuse-Zentrum fuer Informationstechnik Berlin
Hello
I'm using Mathematica 2.2 on a Macintosh and I got a problem generating binomially
distributed random numbers.
I have:
Needs["Statistics`DiscreteDistributions`"]
SeedRandom[17]
Table[Random[BinomialDistribution[10^6,0.01]],{5}]
Out-> {998486, 998486, 998486, 998486, 998486}
Not only that the random numbers are all the same, most importantly they are in a
completely wrong range. One should get something around 10000 !
The problem seems to be 10^6, if I use something smaller, like 10000, everything works
fine. Furthermore the problem seems to be in the Random[] function since
PDF[BinomialDistribution[10^6,0.01],n] works okay (but takes a long time).
Any comments, hints, solutions ?
Many thanks
Axel Kowald