Re: Computing n-grams
- To: mathgroup at smc.vnet.net
- Subject: [mg88971] Re: [mg88913] Computing n-grams
- From: "Richard Palmer" <rhpalmer at gmail.com>
- Date: Thu, 22 May 2008 02:39:47 -0400 (EDT)
- References: <200805211849.OAA10371@smc.vnet.net>
Try Partition[list,n,1] where list is the list to be partitioned
On 5/21/08, Coleman, Mark <Mark.Coleman at libertymutual.com> wrote:
>
> Greetings,
>
> Imagine one has a list such as {a,b,c,d,e,f,g}. I'm trying to find an
> efficient way in Mathematica to compute the n-grams of the list. That is,
> for
> n=2, the n-grams are all the lists of length 2 consisting of consecutive
> elements, e.g.,
>
> {a,b},{b,c},{c,d},{d,e},...
>
> While for n=3,
>
> {a,b,c},{b,c,d},{c,d,e},..., and so on.
>
> As I understand it, the built-in Mathematica commands such as Subsets or
> Permutations compute all possible list of size n, without regard to the
> order of the list elements.
>
> Thanks,
>
> Mark
>
>
>
--
Richard Palmer
Home 508 877-3862
Cell 508 982-7266
- References:
- Computing n-grams
- From: "Coleman, Mark" <Mark.Coleman@LibertyMutual.com>
- Computing n-grams