Statistical packages
- To: mathgroup at yoda.physics.unc.edu
- Subject: Statistical packages
- From: KOLEH at joyl.joensuu.fi
- Date: Mon, 28 Sep 1992 12:16 EET
To the Mathgroup
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.