Re: How best to implement a hash table in Mathematica
- To: mathgroup at smc.vnet.net
- Subject: [mg125085] Re: How best to implement a hash table in Mathematica
- From: Richard Fateman <fateman at cs.berkeley.edu>
- Date: Tue, 21 Feb 2012 06:10:16 -0500 (EST)
- Delivered-to: l-mathgroup@mail-archive0.wolfram.com
- References: <jho21j$5sb$1@smc.vnet.net> <jhqmsq$fbt$1@smc.vnet.net> <jhstus$nku$1@smc.vnet.net>
On 2/19/2012 11:49 PM, Joseph Gwinn wrote:
> In article<jhqmsq$fbt$1 at smc.vnet.net>,
> Richard Fateman<fateman at cs.berkeley.edu> wrote:
>> Initializing a hashtable with 10^4 (identical?) empty keys makes no
>> sense. Did I misunderstand your message?
>
> No, you understood correctly. Please see my response to David Bailey
> for the rationale.
>
> Joe Gwinn
>
Again, I may misunderstand, but I think you can accomplish the same
thing by typing
f[x_]:= {}
if {} is the default empty value.
RJF