Re: arrange lists side by side

• To: mathgroup at smc.vnet.net
• Subject: [mg56591] Re: arrange lists side by side
• From: "Carl K. Woll" <carlw at u.washington.edu>
• Date: Fri, 29 Apr 2005 03:21:48 -0400 (EDT)
• Organization: University of Washington
• References: <d4q1qj\$oh8\$1@smc.vnet.net>
• Sender: owner-wri-mathgroup at wolfram.com

```<marloo3 at mail15.com> wrote in message news:d4q1qj\$oh8\$1 at smc.vnet.net...
> Hi
> is there a way to spread out a small list over a bigger list recurrently
> like
> this:
> a={28, 30, 17};
> b={1, 2, 9, 4, 5, 7, 3, 8};
> to give the output:
> {{1,28},{2,30},{9,17},{4,28},{5,30},{7,17},{3,28},{8,30}};
> the number of items in "b" do not neccesary  multiples of the number of
> items
> in "a"
> mark
>
> okay this is my approach
>
> a={28,30,17};
> b={1,2,9,4,5,7,3,8};
> aa={};aa=Table[Join[aa,a],{i,Length[b]/Length[a]}]
>
> Out[]=
> {{28,30,17},{28,30,17}}
>
> frc=Mod[Length[b],Length[a]];
> gg=Flatten[Join[aa,Part[a,{1,frc}]]];
> Transpose[Join[{b},{gg}]]
>
> Out[]=
> {{1,28},{2,30},{9,17},{4,28},{5,30},{7,17},{3,28},{8,30}}
>
> ----------------------------------------------------------------------
>
>

Undoubtedly you will get a lot of responses. Here is one more.

Transpose[ PadRight[ {{}}, {2, Length[b]}, {b,a} ] ]

Carl Woll

```

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