Ah, yes.  That's it.

  Thanks,
    Jared Crean

On Monday, August 29, 2016 at 3:11:02 PM UTC-4, Erik Schnetter wrote:
>
> Jared
>
> Are you looking for the function `in`?
>
> -erik
>
> On Mon, Aug 29, 2016 at 3:06 PM, Jared Crean <[email protected] 
> <javascript:>> wrote:
>
>> I'm looking for a data structure that allows O(1) querying if a value is 
>> contained in the data structure, and reasonably fast construction of the 
>> data structure given that the initial size is unknown (although this 
>> criteria is not that strict).  I was looking at the Set in base, but I 
>> can't find a way to test if a Set contains contains a particular value.  I 
>> also don't know about the efficiency of appending to a Set.  Any 
>> suggestions or information about Set would be appreciated.
>>
>>     Jared Crean
>>
>
>
>
> -- 
> Erik Schnetter <[email protected] <javascript:>> 
> http://www.perimeterinstitute.ca/personal/eschnetter/
>

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