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MathGroup Archive 2004

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Re: Mean

  • To: mathgroup at smc.vnet.net
  • Subject: [mg48182] Re: Mean
  • From: spam at husumtoften.invalid (Per Rønne)
  • Date: Mon, 17 May 2004 03:21:50 -0400 (EDT)
  • References: <c84iin$129$1@smc.vnet.net>
  • Reply-to: spam at husumtoften.dk (Per Rønne)
  • Sender: owner-wri-mathgroup at wolfram.com

Bobby R. Treat <drbob at bigfoot.com> wrote:

> You've apparently used Mean without (or before) loading the package
> that contains it. It's in the System context in 5.0.1, but in earlier
> versions, you have to load a package such as
> Statistics`DescriptiveStatistics`. Look up Mean in Help, and you can
> find out which package to load, and how. Something like...
> 
> <<Statistics`DescriptiveStatistics`
> 
> or
> 
> Needs["Statistics`"]
> 
> The latter is simplest, especially if you put it in your Init.m file.
> It means you never have to manually load a Statistics package.

There are two explanations:

My TeachersEdition doesn't use the Mathematica 5 kernel. The MacOS X
version uses the 4.2 kernel and the classic MacOS and the Windows
version uses the 4.1 kernel.

And "Getting Started with Mathematica", isbn 0-471-24050-8, writes on
page 127 in the Statistics chapter that the proper package is Master
(Needs["Statistics`Master`"]) - on page 41 the proper package is said to
be DescriptiveStatistics.

The book seems to have been /partly/ updated only.
-- 
Per Erik Rønne


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