Re: List re-arrangement question

• To: mathgroup at smc.vnet.net
• Subject: [mg87750] Re: [mg87733] List re-arrangement question
• From: Bob Hanlon <hanlonr at cox.net>
• Date: Wed, 16 Apr 2008 06:50:56 -0400 (EDT)

```mat = {{{a1, a2, a3}, {a1}, {a1, a2, a3}}, {{b1, b2, b3}, {b1}, {b1,
b2, b3}}};

Inner[Transpose[{##}] &, Sequence @@ mat, List]

{{{a1, b1}, {a2, b2}, {a3, b3}},
{{a1, b1}}, {{a1, b1}, {a2, b2},
{a3, b3}}}

Bob Hanlon

---- Yaroslav Bulatov <yaroslavvb at gmail.com> wrote:
> I'm trying to do something like the following:
> Transpose[{{{a1, a2, a3}, {a1}, {a1, a2, a3}}, {{b1, b2, b3}, {b1},
> {b1, b2, b3}}}, {3, 1, 2}]
>
> expecting to get:
> {{{a1, b1}, {a2, b2}, {a3, b3}}, {{a1, b1}}, {{a1, b1}, {a2, b2}, {a3,
> b3}}}
>
> However, it looks like Transpose doesn't work with "ragged"
> arrays...so what is the recommended Mathematica style to do the above
> transformation?
>

```

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