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MathGroup Archive 2006

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Re: how to compact many maps?

  • To: mathgroup at smc.vnet.net
  • Subject: [mg70790] Re: [mg70748] how to compact many maps?
  • From: János <janos.lobb at yale.edu>
  • Date: Fri, 27 Oct 2006 00:28:49 -0400 (EDT)
  • References: <200610260638.CAA19550@smc.vnet.net>

On Oct 26, 2006, at 2:38 AM, Arkadiusz.Majka at gmail.com wrote:

> Hi,
>
> For table of the following structure
>
> tab=Table[{Random[],Random[]},{10},{5}]
>
> I want to apply function f to the second argument of list.
>
> I did:
>
> (MapAt[f, #, 2] & /@ #) & /@ tab
>
> How can I do it in a simpler, more compact way?
>
> Thanks,
>
> Arek

Here is a newbie approach:

In[54]:=
MapAt[f, lst, Flatten[
    Table[{i, j, 2}, {i, 10},
     {j, 5}], 1]]

Might not be more simpler or compact, but surely more readable :)
János


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