Re: faster sublist checking
- To: mathgroup at smc.vnet.net
- Subject: [mg48898] Re: faster sublist checking
- From: lalu_bhatt at yahoo.com (Bhuvanesh)
- Date: Tue, 22 Jun 2004 05:32:10 -0400 (EDT)
- References: <cabq3o$oos$1@smc.vnet.net> <cb645s$khh$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
jmyers6761 at aol.com (JMyers6761) wrote: > Why is this? > > A = {3, 5}; B = {1, 2, 3, 4, 5, 6, 7}; > > Intersection[B, A] == Sort[A] > True > > but > > SublistQ[B_List, A_List] := Intersection[B, A] == Sort[A]; > > SublistQ[B, A] > False > > Al Myers What version are you using? $Version = 5.0.0 for Microsoft Windows (June 10, 2003) $TopDirectory = C:\Program Files\Wolfram Research\Mathematica\5.0.0 In[1]:= $Version Out[1]= 5.0 for Microsoft Windows (June 10, 2003) In[2]:= A = {3, 5}; B = {1, 2, 3, 4, 5, 6, 7}; In[3]:= Intersection[B, A] == Sort[A] Out[3]= True In[4]:= SublistQ[B_List, A_List] := Intersection[B, A] == Sort[A]; In[5]:= SublistQ[B, A] Out[5]= True Bhuvanesh, Wolfram Research. -- Disclaimer: All opinions expressed herein are my own and not necessarily those of Wolfram Research.