Mathematica 9 is now available
Services & Resources / Wolfram Forums / MathGroup Archive
-----

MathGroup Archive 2007

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: issue generating table of random numbers

  • To: mathgroup at smc.vnet.net
  • Subject: [mg81906] Re: issue generating table of random numbers
  • From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
  • Date: Sat, 6 Oct 2007 04:41:23 -0400 (EDT)
  • References: <fe4v33$1kh$1@smc.vnet.net>

Hi,

for Mathematica 6.0 try

SetSystemOptions[
  SystemOptions[] /. ("TableCompileLength" -> _) :> \
("TableCompileLength" -> Infinity)]

and try your Table[] again.

BTW thats a bug !

Regards
   Jens

John Molina wrote:
> Hi, I'm running Mathematica 6 on OsX (10.4) and have been experiencing difficulties generating a table of random numbers (a table of random matrices actually). 
> matrix = Table[RandomChoice[{-1, 1}, {4, 4}], {250}]
> for a table size less than 250 it seems to work fine but for larger sizes mathematica is flattening out the lists:
> matrix[[i]] = {-1,1,1,-1}
> and not
>             = {{-1,1},{1,-1}}
> As far as I can tell this is only happening with the RandomChoice command (RandomInteger and RandomReal work fine). Does anyone know what is happening? is this a bug?
> thanks
> 


  • Prev by Date: Solution of a non-linear ODE
  • Next by Date: RE: Re: BarChart - intensity of colour increases up the
  • Previous by thread: Re: issue generating table of random numbers
  • Next by thread: Re: issue generating table of random numbers