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MathGroup Archive 2004

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Re: sort procedure

  • To: mathgroup at smc.vnet.net
  • Subject: [mg52500] Re: [mg52483] sort procedure
  • From: yehuda ben-shimol <benshimo at bgu.ac.il>
  • Date: Tue, 30 Nov 2004 05:24:02 -0500 (EST)
  • References: <200411290622.BAA27959@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

First, the Sort[] function is very flexible, so actually you can use ANY sort 
criterion you like to sort. I'm not sure that I fully understand the 
arrangements of your measurements you have a list element of the form 
zi={{x0,x1,x2,...,xk},{y0,y1,y2,...,ym}} where the xi are taken at time t and 
the yi taken at time t-1, z={z0,z1,z2,...,zn} (n pairs).
Then in this case use Sort[z,Length[#1[[2]]] <Length[#2[[2]]]&].
If the arrangement of your measurements is different than my understanding, 
please correct me.
yehuda
On Monday 29 November 2004 08:22, paolo wrote:
> If I have a data serie of n paired observations (x_t,x_t-1) ordered
> according to time, how can i re-order this serie according to the size of
> x_t-1
>
> The procedure Sort it seems it does not work well.
> anyone has suggestions?
> thanks
>
> P.
>
>
>
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