Re: Combinations
- To: mathgroup at smc.vnet.net
- Subject: [mg49697] Re: [mg49672] Combinations
- From: János <janos.lobb at yale.edu>
- Date: Thu, 29 Jul 2004 07:43:06 -0400 (EDT)
- References: <200407271100.HAA11164@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
With Outer you need a function as the first parameter. Being a newbie
I would go with:
Flatten[Outer[List, {a, b, c}, {a, b, c}, {a, b, c}], 2]
János
P.S. Look back on the list for any postings to "All combinations" from
April this year. Here is what I got back from Andrzej Kozlowski
AllCombinations[S_List,k_]:=Distribute[Table[S,{k}],List]
pretty comprehensive and deep.
On Jul 27, 2004, at 7:00 AM, Gregory Lypny wrote:
> Hello everyone,
>
> Does Mathematica have a built-in function that will generate a simple
> list all possible combinations of a list of strings? For example,
> {a,b,c}, where the elements are strings, should give 3x3=27 triplets of
> "aaa", "aba", etc.
>
> I tried
>
> In[4]:=Outer[{a,b,c},{a,b,c},{a,b,c}]
>
> but I get
>
> {{{a, b, c}[a, a], {a, b, c}[a, b], {
> a, b, c}[a, c]}, {{a, b, c}[b, a], {a, b, c}[b, b], {a, b,
> c}[b, c]}, {{a, b, c}[c, a], {a, b, c}[c, b], {a, b, c}[c, c]}}
>
> which is going to be difficult to match with my data using BinCounts
> and the like.
>
> Regards,
>
> Greg
>
>
------
"..because Annushka has already bought sunflower oil, and not only
bought it, but spilled it too."
Bulgakov: Master and Margarita
- References:
- Combinations
- From: Gregory Lypny <gregory.lypny@videotron.ca>
- Combinations