MathGroup Archive: February 2007 [00495]

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Re: Creating a Listable Function

To: mathgroup at smc.vnet.net
Subject: [mg73552] Re: Creating a Listable Function
From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
Date: Wed, 21 Feb 2007 06:04:58 -0500 (EST)
Organization: Uni Leipzig
References: <ergqjm$j0v$1@smc.vnet.net>
Reply-to: kuska at informatik.uni-leipzig.de

Hi,

SetAttributes[VarPop,Listable]

??

Regards
   Jens

Gregory Lypny wrote:
> Hello everyone,
> 
> I've created a function for population variance, which does not make  
> use of Mathematica's built-in Variance function.
> 
> VarPop[x_] := Total[(x - Mean@x)^2]/Length@x
> 
> How do I need to change the definition to have the function operate  
> across lists much like Total, Mean, and Variance do?
> 
> Regards,
> 
> 	Greg
>

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