Re: Mathematica: Statistics Packages - Discrete & Continuous Distributions
- To: mathgroup at yoda.physics.unc.edu
 - Subject: Re: Mathematica: Statistics Packages - Discrete & Continuous Distributions
 - From: "Prof. L. Seiford, IEOR, UMass, 413/545-1658" <SEIFORD at ecs.umass.edu>
 - Date: Sat, 02 Oct 1993 10:49:43 -0500
 
> PDF[ PoissonDistribution[1], {0,1} ]
> 
> returns only some logical checking. The problem seems to be the { } since
> 
> PDF[ PoissonDistribution[1], 1 ]
> 
> is fine but
> 
> PDF[ PoissonDistribution[1], {1} ]
> 
> fails.
> 
> Does anyone have a fix for this?  Many thanks
One "fix" is to define p(x) to be the Poisson pdf
In[26]:=
p[x_] := PDF[ PoissonDistribution[1], x ]
Then apply the function to your list, i.e.,
In[30]:=
p/@{0,1}       to get
Out[30]=
 1  1
{-, -}
 E  E
--larry