An often better approach is to use a function like with or within.  These
allow you to run a command with your list (data frame, environment, etc.)
in the first position of the search list so they behave like they are in
the global environment (actually better because they temporarily mask
rather than overwrite other objects of the same name), but do not clutter
up your global environment and/or search list.

You can use the attach (and detach) functions, but this is generally not as
good as with/within since the variables in your list can still be masked
and if you don't clean up after yourself then the search path gets really
cluttered (and therefore more masking and related problems).


On Fri, Feb 1, 2013 at 3:24 PM, Jonathan Greenberg <jgrn@illinois.edu>wrote:

> R-helpers:
>
> Say I have a list:
>
> myvariables <- list(a=1:10,b=20)
>
> Is there a way to load the list components into the environment as
> variables based on the component names?  i.e. by applying this theoretical
> function to myvariables I would have the variables a and b loaded into the
> environment without having to explicitly define them.
>
> --j
>
> --
> Jonathan A. Greenberg, PhD
> Assistant Professor
> Global Environmental Analysis and Remote Sensing (GEARS) Laboratory
> Department of Geography and Geographic Information Science
> University of Illinois at Urbana-Champaign
> 607 South Mathews Avenue, MC 150
> Urbana, IL 61801
> Phone: 217-300-1924
> http://www.geog.illinois.edu/~jgrn/
> AIM: jgrn307, MSN: jgrn307@hotmail.com, Gchat: jgrn307, Skype: jgrn3007
>
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>
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>



-- 
Gregory (Greg) L. Snow Ph.D.
538280@gmail.com

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