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Re: Re: Deleting elements from a Table

  • To: mathgroup at smc.vnet.net
  • Subject: [mg85946] Re: [mg85895] Re: Deleting elements from a Table
  • From: bsyehuda at gmail.com
  • Date: Thu, 28 Feb 2008 02:53:43 -0500 (EST)
  • References: <fq0u1f$k7g$1@smc.vnet.net> <fq1296$mdj$1@smc.vnet.net>

 TabIN /. {a___,{q_,_},b___,{q_,_},c___}:> {a,b,c}
no need for Sort


On Wed, Feb 27, 2008 at 11:23 AM, Luigi B <L.Balzano at gmail.com> wrote:

> On 26 Feb, 13:56, Jens-Peer Kuska <ku... at informatik.uni-leipzig.de>
> wrote:
> > Hi,
> >
> > TabIN /. {a___,{q_,_},{q_,_},b___}:> {a,b}
> >
> > if the second element are not follow the first, you may
> > Sort[] the list.
> >
> > Regards
> >    Jens
> >
> > L.Balz... at gmail.com wrote:
> > > Dear All,
> > >  I have go the following problem:
> > > I have a table of elements like {{x1,y1},{x2,y2}....}. Occasionally,
> > > two elements have the same x. I would like to drop these elements with
> > > a rule-based function.
> > > Example:
> >
> > > TabIN={{1,1},{1,2},{2,2}};
> >
> > > my desired output is:
> >
> > > TabOUT={{2,2}}
> >
> > > Any help?
> > > Thanks
> > > Luigi
>
> Thanks, it works!
> but what if (time-wise) I want to skip the Sort of the input table?
>
> ciao
> Luigi
>
>


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