Re: GammaDistribution versus PoissonDistribution
- To: mathgroup at smc.vnet.net
- Subject: [mg79002] Re: GammaDistribution versus PoissonDistribution
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Sun, 15 Jul 2007 01:10:50 -0400 (EDT)
- References: <f79rh5$450$1@smc.vnet.net>
Hi,
try
PDF[PoissonDistribution[12], x]
and
PDF[GammaDistribution[x + 1, 1], 12]
Regards
Jens
P_ter wrote:
> Hello,
> as far as I understand the GammaDistribution has two parameters: alfa and beta. With beta =1 one should get the PoissonDistribution with paramter alfa-1.
> I did, just to check:
> N[Table[{i, PDF[PoissonDistribution[12],i],
> PDF[GammaDistribution[13,1],i] },{i,0,30}]
> I got different values.
> Can anyone help me in what I do wrong?
> with friendly greetings,
> Peter
>