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.