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MathGroup Archive 2007

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Re: List manipulation

  • To: mathgroup at smc.vnet.net
  • Subject: [mg73258] Re: [mg73248] List manipulation
  • From: Carl Woll <carlw at wolfram.com>
  • Date: Fri, 9 Feb 2007 02:16:23 -0500 (EST)
  • References: <200702080848.DAA05054@smc.vnet.net>

sepp 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!
>  
>
I like to do this sort of thing with PadRight.

In[29]:= liste = {{a1, a2, a3}, {b1, b2, b3}, {c1, c2, c3}};

In[30]:= PadRight[liste, Dimensions[liste] + {0, 1}, e]
Out[30]= {{a1, a2, a3, e}, {b1, b2, b3, e}, {c1, c2, c3, e}}

Carl Woll
Wolfram Research


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