Re: Matrix question
- To: mathgroup at smc.vnet.net
- Subject: [mg60306] Re: Matrix question
- From: David Bailey <dave at Remove_Thisdbailey.co.uk>
- Date: Sat, 10 Sep 2005 22:36:26 -0400 (EDT)
- References: <dfudth$1qo$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
sandog wrote:
> i want to create a NxN matrix with zeros but i want a percentage of the matrix spots to be one at random spots any idea? cause i have no clue how to do that.
> Any help appreciated thx .
>
Hello,
This will make a 10x10 array with a probability of 0.3 that each point
will be a 1
Array[If[Random[]>0.7,1,0]&,{10,10}]
David Bailey
http://www.dbaileyconsultancy.co.uk