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