Re: Sorting nested list
- To: mathgroup at smc.vnet.net
- Subject: [mg57374] Re: Sorting nested list
- From: dh <dh at metrohm.ch>
- Date: Thu, 26 May 2005 04:31:19 -0400 (EDT)
- References: <d6us0f$ivm$1@smc.vnet.net>
- Sender: owner-wri-mathgroup at wolfram.com
Hi Gernot,
MapAt will apply a function exactly at the places you choose.E.g.:
d = {{a, {2, 4, 1.}}, {b, {3.2, -2, -3}}};
MapAt[Sort, d, Table[{i, 2}, {i, 1, Length[d]}]]
You may also use Map and take the arguments apart:
{First[#], Sort[Rest[#]]} & /@ d
Sincerely, Daniel
Gernot Pfanner wrote:
> Hi!
>
> Please forgive me, if this is the 100.000th posting concerning sorting a
> list. But at the moment I'm pretty confused, and so I ask you kindly for
> your help...
> Given something like
> {{a,{2,4,1.,...}},{b,{3.2,-2,...}}}
> How do I sort just the inner lists (i.e. e.g. {2,4,1.,...}), so that my
> object finally looks like
> {{a,{1.,2,4.,...}},{b,{-2,3.2,...}}}
> In this spirit
> With thanks in advance
> Yours Gernot
>