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Re: Clearing selected variables

  • To: mathgroup at smc.vnet.net
  • Subject: [mg86642] Re: Clearing selected variables
  • From: Szabolcs <szhorvat at gmail.com>
  • Date: Sat, 15 Mar 2008 17:45:15 -0500 (EST)
  • References: <frg0ef$f0b$1@smc.vnet.net>

On Mar 15, 9:13=A0am, pradeep <prad... at purdue.edu> wrote:
> Hello All,
> is there a way i can selectively clear all but a few variables in
> mathematica?? i have a large number of variables and am iteratively
> running my entire notebook through a loop and want most variables except
> a few to get cleared between iterations..
> any help would be appreciated!
>
> thanks!
> Pradeep
> Purdue University

Why don't you localize those variables that need to be cleared with a
Module or a Block?  Explicitly Clear[]ing symbols in a loop sounds
like something that could lead to trouble and confusion ...

Here's a way to clear all names in the Global context except a, b, and
c:

Clear @@ Complement[Names["Global`*"], {"a", "b", "c"}]


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