Re: populate a list with random numbers from normal distribution?
- To: mathgroup at smc.vnet.net
- Subject: [mg49870] Re: [mg49855] populate a list with random numbers from normal distribution?
- From: Bob Hanlon <hanlonr at cox.net>
- Date: Thu, 5 Aug 2004 09:20:31 -0400 (EDT)
- Reply-to: hanlonr at cox.net
- Sender: owner-wri-mathgroup at wolfram.com
Needs["Statistics`ContinuousDistributions`"]; data=RandomArray[NormalDistribution[50000,25000],{1000}]; #[data]& /@ {Mean, Variance, StandardDeviation} // N {49212.297808892145, 6.388327485991619*^8, 25275.140921450107} Since you seem to want Integers data=Round /@ data; #[data]& /@ {Mean, Variance, StandardDeviation} //N {49212.299, 6.388324440996987*^8, 25275.134897754724} Bob Hanlon > > From: sean_incali at yahoo.com (sean kim) To: mathgroup at smc.vnet.net > Date: 2004/08/04 Wed AM 10:46:33 EDT > To: mathgroup at smc.vnet.net > Subject: [mg49870] [mg49855] populate a list with random numbers from normal distribution? > > hello group. > > I looked at the help browser but i can't figure this out. I weant to > make a list of random numbers sampled from a normal distribution > > In[90]:= Needs["Statistics`ContinuousDistributions`"] > > l1 = Table[Random[NormalDistribution[50000,25000], Integer, {10000, > 99999}], {1000}]; > > Variance[l1]//N > StandardDeviation[l1]//N > > > From In[90]:= > Random::"randt": > Type specification NormalDistribution[50000, 25000] in > <<1>> should be Real, Integer, or Complex. > > Out[92]= > 0. > Out[93]= > 0. > > thanks in advance for any insights > > sean > >