Re: rule based program for "Deleting repeated members of a list."
- To: mathgroup at smc.vnet.net
- Subject: [mg81939] Re: rule based program for "Deleting repeated members of a list."
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Sun, 7 Oct 2007 05:31:15 -0400 (EDT)
- References: <fe7j44$qga$1@smc.vnet.net>
Hi,
s = {a, b, c, c, d, e, e, f, g, g, g, h, a, b};
and
s //. {a___, b_, b_, c___} :> {a, b, c}
will do it
or
First /@ Split[s]
may be faster
Regards
Jens
mumat wrote:
> Hi,
>
> I have a list s={a,b,c,c,d,e,e,f,g,g,g,h,a,b};
>
> I need to write a program so that it reads the list and ignors
> repeated elements; so it outputs the following:
>
> RepeatRemover[s]={a,b,c,d,e,f,g,h,a,b};
>
> I am looking for a rule-based program to do this!
>
> Any help would be greatly appreciated.
>
> C.S.
>
>