Mathematica 9 is now available
Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2005
*January
*February
*March
*April
*May
*June
*July
*August
*September
*October
*November
*December
*Archive Index
*Ask about this page
*Print this page
*Give us feedback
*Sign up for the Wolfram Insider

MathGroup Archive 2005

[Date Index] [Thread Index] [Author Index]

Search the Archive

Re: match 1, replace 2

  • To: mathgroup at smc.vnet.net
  • Subject: [mg56227] Re: match 1, replace 2
  • From: "Jens-Peer Kuska" <kuska at informatik.uni-leipzig.de>
  • Date: Wed, 20 Apr 2005 05:29:57 -0400 (EDT)
  • Organization: Uni Leipzig
  • References: <d42khj$3ac$1@smc.vnet.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,

ls = {{1, 2, 3}, {4, 5}, {6, 7, 8, 9}};

ls /. {a__Integer, b_Integer} :>

    {Sequence @@ Flatten[{100 + #, -1} & /@ {a}], 
b}

???

Regards

  Jens

"Trevor Baca" <trevorbaca at gmail.com> schrieb im 
Newsbeitrag news:d42khj$3ac$1 at smc.vnet.net...
> hi mathgroup,
>
> what rule takes
>
> ls = {{1, 2, 3}, {4, 5}, {6, 7, 8, 9}}
>
> to
>
>      {{101, -1, 102, -1, 3}, {104, -1, 5}, 
> {106, -1, 107, -1, 108, -1,
> 9}}
>
> ie, matches all integers but the last in each 
> list and then replaces
> each matched integer n with the 2-element 
> sequence Sequence[100 + n,
> -1]?
>
> trevor.
> 



  • Prev by Date: Re : plot on condition
  • Next by Date: Re: assigning functions
  • Previous by thread: Re: match 1, replace 2
  • Next by thread: Re: match 1, replace 2