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MathGroup Archive 2004

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Re: sort procedure

  • To: mathgroup at smc.vnet.net
  • Subject: [mg52512] Re: [mg52483] sort procedure
  • From: Tomas Garza <tgarza01 at prodigy.net.mx>
  • Date: Tue, 30 Nov 2004 05:24:30 -0500 (EST)
  • References: <200411290622.BAA27959@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Sort works all right. Check the Help browser to learn about ordering 
function. E.g.

In[1]:=
pairs = Table[Random[Integer, {0, 99}],{10}, {2}]
Out[1]=
{{89,90},{87,84},{57,99},{88,64},{15,46},{81,50},{74,39},{64,79},{96,67},{34,
    25}}

In[2]:=
Sort[pairs, #1[[2]] < #2[[2]] & ]
Out[2]=
{{34,25},{74,39},{15,46},{81,50},{88,64},{96,67},{64,79},{87,84},{89,90},{57,
    99}}

Tomas Garza
Mexico City
----- Original Message ----- 
From: "paolo" <tarpanelli at libero.it>
To: mathgroup at smc.vnet.net
Subject: [mg52512] [mg52483] sort procedure


> 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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