MathGroup Archive 1992

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Statistical packages


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Do the the statistical packages in Mathematica conflict with
each others. For example, the package `Master` does not work 
with the normal distribution.


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?

And here is one more example


In[1]:= !!alku.m
<<Statistics`ContinuosDistributions` 
<<Statistics`NormalDistribution`

In[1]:= <<alku.m

SetDelayed::write: 
   Tag ChiSquareDistribution in Domain[ChiSquareDistribution[___]]
     is Protected.

SetDelayed::write: 
   Tag ChiSquareDistribution in PDF[ChiSquareDistribution[n_], x_]
     is Protected.

SetDelayed::write: 
   Tag ChiSquareDistribution in CDF[ChiSquareDistribution[n_], x_]
     is Protected.

General::stop: Further output of SetDelayed::write
     will be suppressed during this calculation.

Set::write: Tag FRatioDistribution in Domain[FRatioDistribution[___]]
     is Protected.

Set::write: Tag NormalDistribution in Domain[NormalDistribution[___]]
     is Protected.

Set::write: Tag NormalDistribution in 
    Skewness[NormalDistribution[mu_:0, sigma_:1]] is Protected.

General::stop: Further output of Set::write
     will be suppressed during this calculation.

In[2]:= PDF[NormalDistribution[0,1],x]

               1
Out[2]= ----------------
          2
         x /2
        E     Sqrt[2 Pi]

It however did work.
 







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