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MathGroup Archive 1995

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Re: Re: Unique List

  • To: mathgroup at
  • Subject: [mg389] Re: [mg383] Re: [mg358] Unique List
  • From: Istvan.Nemes at
  • Date: Sun, 08 Jan 95 12:08:51 +0100

>>OK, time for a little fun...

>How come nobody remembered Union? It needs no package; it is one of the
>core operators.  Also, this one maintains the random order of the original
>trials.  And thanks to Dana Scott for the improvement 42->52.

>While[len != 6,
 	       hand = Table[Random[Integer,{1,52}],{6}];
 	       len = Length[Union[hand]]
>	     ]

>I think a lot of us forget that readability is very important to
>non-hotshot users of Mathematica, who are the audience.
>Martin McClain

Your algorithm terminates with probability 1, however, for any positive
integer n, the probability that the function you gave will not terminate
after calling Random n times, is positive.

Istvan Nemes

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