Re: How to return the position of a multidimensional list ..
- To: mathgroup at smc.vnet.net
- Subject: [mg7070] Re: [mg7040] How to return the position of a multidimensional list ..
- From: Allan Hayes <hay at haystack.demon.co.uk>
- Date: Sat, 3 May 1997 22:04:59 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
2 May 1997 cmchung at se.cuhk.edu.hk (Chung Cheong Ming) [mg7040] How to return the position of a multidimensional list .. >eg. OuterList = {sublist1, sublist2, ...} > >I want to find where a sublist situates in the OuterList if I know >the first 2 elements of this sublist. Joseph: OuterList = {{1,2,3},{2,1,3}}; Position[OuterList,{2,1,___}] {{2}} If the sublists contain more complex elements you may need to limit the search: Position[OuterList,{2,1,___}, {1}, (*level*), Heads->False (*not inside heads*) ] {{2}} Allan Hayes hay at haystack.demon.co.uk http://haystack.demon.co.uk