RV: Returning List Position w/o brackets
- To: mathgroup at smc.vnet.net
- Subject: [mg29014] RV: [mg28990] Returning List Position w/o brackets
- From: "Higinio Ramos" <higra at gugu.usal.es>
- Date: Fri, 25 May 2001 01:47:52 -0400 (EDT)
- Sender: owner-wri-mathgroup at wolfram.com
----- Original Message -----
From: Higinio Ramos <higra at gugu.usal.es>
To: mathgroup at smc.vnet.net
Subject: [mg29014] RE: [mg28990] Returning List Position w/o brackets
>
> ----- Original Message -----
> From: brian <polar at cloud9.net>
To: mathgroup at smc.vnet.net
> To: <mathgroup at smc.vnet.net>
> Sent: Thursday, May 24, 2001 10:07 AM
> Subject: [mg29014] [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
Or simply
In[44]:=
letter[[ Flatten[ Position[ number, 2 ] ] ]][[1]]
Out[44]=
b