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Re: more with lists

  • To: mathgroup at smc.vnet.net
  • Subject: [mg40334] Re: more with lists
  • From: bobhanlon at aol.com (Bob Hanlon)
  • Date: Wed, 2 Apr 2003 04:34:06 -0500 (EST)
  • References: <b6bnr8$4p$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

After defining X0 and Y0 use one of these:

Select[data, #[[1]] < X0 && #[[2]] > Y0&]

Cases[data, {x_,y_}/; x< X0 && y > Y0]

Cases[data, {_?(#<X0&), _?(#>Y0&)}]


Bob Hanlon

In article <b6bnr8$4p$1 at smc.vnet.net>, "Nathan Moore" <nmoore at physics.umn.edu>
wrote:

<< Subject:	more with lists
From:		"Nathan Moore" <nmoore at physics.umn.edu>
To: mathgroup at smc.vnet.net
Date:		Tue, 1 Apr 2003 09:58:00 +0000 (UTC)

The replies have been beautiful!

suppose I have a list of n {x,y}pairs.  I'd like to cull the list into a
smaller list for which the condition x<Xo, y>Yo is true.  If the list was
1-D I could simply use "Select," how do I access the data points in pairs?

Nathan Moore
Universoty of Minnesota Physics
 >><BR><BR>


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