Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2007
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2007

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: List manipulation

  • To: mathgroup at smc.vnet.net
  • Subject: [mg73269] Re: List manipulation
  • From: "dimitris" <dimmechan at yahoo.com>
  • Date: Fri, 9 Feb 2007 02:22:05 -0500 (EST)
  • References: <eqep4g$5dk$1@smc.vnet.net>

On Feb 8, 11:05 am, "sepp" <gary.lar... at gmx.at> wrote:
> hello,
> I would like to combine list elements in the following way:
>
> I have a list with
> liste={{a1,a2,a3},{b1,b2,b3},{c1,c2,c3},.....}
> and a single element {e}
>
> I would to add the element {e} to each sublist to get something like
> liste_new={ {a1,a2,a3,e},{b1,b2,b3,e},{c1,c2,c3,e},.....}
> so that finally I can apply a function f on the list
> liste_manipulated={f[ {a1,a2,a3,e}],f[{b1,b2,b3,e}],f[{c1,c2,c3,e}],.....}
>
> I had a look at thread, mapthread, inner, outer, but nothing really
> seems to fit...
> thank you in advance for useful comments!

Along many alternatives you can try:

In[7]:=
lst = {{a1, a2, a3}, {b1, b2, b3}, {c1, c2, c3}}
Out[7]=
{{a1, a2, a3}, {b1, b2, b3}, {c1, c2, c3}}

In[8]:=
lstnew = (Insert[#1, e, -1] & ) /@ lst
Out[8]=
{{a1, a2, a3, e}, {b1, b2, b3, e}, {c1, c2, c3, e}}

In[9]:=
lstman = Apply[f, lstnew, {1}]
Out[9]=
{f[a1, a2, a3, e], f[b1, b2, b3, e], f[c1, c2, c3, e]}

Regards
Dimitris



  • Prev by Date: Re: List manipulation
  • Next by Date: Re: List manipulation
  • Previous by thread: Re: List manipulation
  • Next by thread: Re: List manipulation