Re: issue generating table of random numbers
- To: mathgroup at smc.vnet.net
- Subject: [mg81901] Re: [mg81877] issue generating table of random numbers
- From: DrMajorBob <drmajorbob at bigfoot.com>
- Date: Sat, 6 Oct 2007 04:38:49 -0400 (EDT)
- References: <914538.1191598805680.JavaMail.root@m35>
- Reply-to: drmajorbob at bigfoot.com
Of course it's a bug!
Table[RandomChoice[{-1, 1}, {4, 4}], {249}] // Dimensions
{249, 4, 4}
Table[RandomChoice[{-1, 1}, {4, 4}], {251}] // Dimensions
{251, 1, 16}
Bobby
On Fri, 05 Oct 2007 03:57:58 -0500, John Molina <johnjmolina at gmail.com>
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
>
>
--
DrMajorBob at bigfoot.com