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MathGroup Archive 2003

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Re: Random Trouble

  • To: mathgroup at smc.vnet.net
  • Subject: [mg39181] Re: [mg39178] Random Trouble
  • From: Andrzej Kozlowski <akoz at mimuw.edu.pl>
  • Date: Mon, 3 Feb 2003 01:08:13 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

On Sunday, February 2, 2003, at 03:13 PM, Donald Darling wrote:

> I have a program which uses a random number in several places - the 
> same
> number in a given run of the program. When I implement the program 
> however
> the number changes in every new call to it.  I've tried to overcome 
> this
> using "Which", "Hold", "Verbatim", and others, all to no avail.  Any 
> help
> greatly appreciated.
>
>
>
>
>

This is what SeedRandom is for, e.g.


SeedRandom[5];Table[Random[Integer,{1,10}],{3}]


{2,3,2}

Now evaluating again:


SeedRandom[5];Table[Random[Integer,{1,10}],{3}]


{2,3,2}


Andrzej Kozlowski
Yokohama, Japan
http://www.mimuw.edu.pl/~akoz/
http://platon.c.u-tokyo.ac.jp/andrzej/



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