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