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MathGroup Archive 1992

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Re: Statistical packages

  • To: mathgroup at yoda.physics.unc.edu
  • Subject: Re: Statistical packages
  • From: ags at seaman.cc.purdue.edu (Dave Seaman)
  • Date: Tue, 29 Sep 92 10:06:51 EST

>Mathematica 2.0 for MS-DOS 386/7
>Copyright 1988-91 Wolfram Research, Inc.
>
>In[1]:= <<Statistics`Master`
>
>In[2]:= PDF[NormalDistribution[0,1],x]
>
>PDF::shdw: Warning: Symbol PDF appears in multiple contexts 

>    {Statistics`Common`DistributionsCommon`, Global`}; definitions  
in context 

>    Statistics`Common`DistributionsCommon`
>     may shadow or be shadowed by other definitions.
>
>Out[2]= PDF[NormalDistribution[0, 1], x]
>
>What did go wrong?

This looks to me like an omitted DeclarePackage in the file  
Statistics/Master.m in Mathematica 2.0. It's fixed in Mathematica  
2.1. I found that in the 2.0 version, a

	Remove[PDF]
	
gets rid of the unwanted global context and lets this example work  
properly (but beware, there may be other identifiers with the same  
problem).

Dave Seaman





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