Re: more with lists
- To: mathgroup at smc.vnet.net
- Subject: [mg40350] Re: [mg40326] more with lists
- From: Tomas Garza <tgarza01 at prodigy.net.mx>
- Date: Wed, 2 Apr 2003 04:37:03 -0500 (EST)
- References: <C3A16B6A-6334-11D7-B455-00039311C1CC@mimuw.edu.pl> <200303310901.EAA21697@smc.vnet.net> <200304010952.EAA00092@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Suppose In[1]:= lst = Table[{Random[Integer, {0, 9}], Random[Integer, {0, 9}]}, {100}]; In[2]:= x0 = 3; y0 = 2; The two obvious ways are In[3]:= Cases[lst, {x_, y_} /; x < x0 && y > y0] In[4]:= Select[lst, #[[1]]<x0&&#[[2]]>y0&] Tomas Garza Mexico City ----- Original Message ----- From: "Nathan Moore" <nmoore at physics.umn.edu> To: mathgroup at smc.vnet.net Subject: [mg40350] [mg40326] more with lists > 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 > > >
- References:
- more with lists
- From: "Nathan Moore" <nmoore@physics.umn.edu>
- more with lists