Re: Data manipulation
- To: mathgroup at smc.vnet.net
- Subject: [mg37702] Re: Data manipulation
- From: Jens-Peer Kuska <kuska at informatik.uni-leipzig.de>
- Date: Sat, 9 Nov 2002 00:29:02 -0500 (EST)
- Organization: Universitaet Leipzig
- References: <aqfp8e$7d9$1@smc.vnet.net>
- Reply-to: kuska at informatik.uni-leipzig.de
- Sender: owner-wri-mathgroup at wolfram.com
Hi, Select[data, First[#] >= 2 && First[#] <= 4 &] Regards Jens Adam Smith wrote: > > I know that this has been covered before, but I could not find it. > > I have a list of data and I want to select a subset based on a > condition. > > A simple example: > > data = > {{0.39501, 10}, {1.65689, 20}, {2.40239, 30}, {3.27252, 40}, {4.41738, > 50}} > > I want to select only the pairs for which the first element of each > pair is greater than or equal to 2.0 and less than 4.0 In this case > the final result would be > > {{2.40239, 30}, {3.27252, 40}} > > In reality the list is several hundred pairs. > > Thanks > > Adam