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MathGroup Archive 2001

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RE: Returning List Position w/o brackets

  • To: mathgroup at smc.vnet.net
  • Subject: [mg29010] RE: [mg28990] Returning List Position w/o brackets
  • From: "Higinio Ramos" <higra at gugu.usal.es>
  • Date: Fri, 25 May 2001 01:47:50 -0400 (EDT)
  • References: <200105240807.EAA04916@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

----- Original Message ----- 
From: brian <polar at cloud9.net>
To: mathgroup at smc.vnet.net
Subject: [mg29010] [mg28990] Returning List Position w/o brackets


> Is there a way to have have the Position function return a value without
> the brackets.
> 
>         Say there are two lists,
>         letter = {a,b,c,d} and number = {1,2,3,4}
> 
>         If I call             letter[[2]] I get b
>         but if I use        letter[[  Flatten[ Position[ number, 2 ] ]
> ]] I get {b}
> 
>         I have several large lists that I am searching through and then
> need to print out the values and I would like to have the brackets
> removed from the text reports.  I hve tried several different methods
> but nothing seems to work.
> 
> Thank for any help    Brian
> 
> 
perhaps there is no the better way, but it works

In[23]:=
letter[[Apply[Sequence, Flatten[Position[ number, 2 ]]]]]
Out[23]=
b



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