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Re: Occurrences in Mathematica

  • To: mathgroup at smc.vnet.net
  • Subject: [mg106375] Re: Occurrences in Mathematica
  • From: Peter Pein <petsie at dordos.net>
  • Date: Mon, 11 Jan 2010 05:28:27 -0500 (EST)
  • References: <hic33o$59f$1@smc.vnet.net>

George schrieb:
> Hi,
> 
> I have a very big list of elements and I need Mathematica to give me
> only those elements which occure only once...
> 
> Could anybody advise me please how to write the code for that?
> 
> Thks much
> George
> 

oops I forgot: Cases[Tally[theList],{x_,1}:>x,1]



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