Re: How to extract sequenced data from an array?

[Sergei Steshenko]

--- On Wed, 12/22/10, Ben Abbott <address@hidden> wrote:

> From: Ben Abbott <address@hidden>
> Subject: Re: How to extract sequenced data from an array?
> To: "new_user" <address@hidden>
> Cc: address@hidden
> Date: Wednesday, December 22, 2010, 4:43 AM
> On Dec 22, 2010, at 4:39 AM, new_user
> wrote:
> 
> > Hi,
> > having sequenced data array I would like to extract
> it's unique part.
> > 
> > Let's consider this simple array:
> > 
> > X =
> > 1 2 
> > 1 2
> > 2 2
> > 3 1
> > 2 3
> > 1 2 
> > 1 2
> > 2 2
> > 3 1
> > 2 3
> > 1 2 
> > 1 2
> > 2 2
> > 3 1
> > 2 3
> > 
> > {...}
> > 
> > I would like to get:
> > 
> > Y =
> > 1 2 
> > 1 2
> > 2 2
> > 3 1
> > 2 3
> > 
> > as a result.
> > 
> > Thanks for your time
> 
> I don't understand what is unique about the result you'd
> like to get.

[snip]

It looks like the OP wants to extract only the first period of data of two
(per column) periodic functions, but it's just my wild guess.

There are too few details to draw further conclusions, i.e. do the two
functions have the same period, why there is more than one period of data,
etc.

Regards,
  Sergei.