Re: List Question
- To: mathgroup at smc.vnet.net
- Subject: [mg67916] Re: List Question
- From: dh <dh at metrohm.ch>
- Date: Thu, 13 Jul 2006 06:52:59 -0400 (EDT)
- References: <e92e03$ljm$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi Simon,
try the following:
list /. x : {x1_, x2_, x3_}?VectorQ -> {x1, x2}
the ?VectorQ is needed to prevent that list with 3 elements are truncated.
Daniel
Simon Bale wrote:
> Hi,
>
> I have a list with the following structure:
>
> {{x1,y1},{x2,y2},{x3,y3,z3},{x4,y4}...}
>
> As you can see some of the data points have three elements. I would
> like to remove these z elements so that the list has a structure
> {{x1,y1},{x2,y2},{x3,y3},{x4,y4}...}. I'm not sure how to achieve this
> so any
> help is greatly appreciated.
>
> Regards, Simon Bale.
>