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MathGroup Archive 2007

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Re: Length of random index into list

  • To: mathgroup at smc.vnet.net
  • Subject: [mg74912] Re: Length of random index into list
  • From: "bitRAKE" <bitRAKE at gmail.com>
  • Date: Wed, 11 Apr 2007 01:54:46 -0400 (EDT)
  • References: <evd3sk$5iv$1@smc.vnet.net><evfkrj$77f$1@smc.vnet.net>

On Apr 10, 2:19 am, Jean-Marc Gulliet <jeanmarc.gull... at gmail.com>
wrote:
> bitRAKE wrote:
> > node = Length@Extract[s, indices]
>
> > How can this be done without using Extract?
>
> > Regards,
> > bitRAKE
>
> Does
>
> node = Length /@ s
>
> fit your needs?
>
> Or
>
> node = Length[s[[indices]]]
>
> Regards,
> Jean-Marc

Found a strange solution...
node=Length[s[[## & @@ indices]]]

(c:



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