Services & Resources / Wolfram Forums
-----
 /
MathGroup Archive
2006
*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 2006

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

Search the Archive

finding the position of a pattern in list

  • To: mathgroup at smc.vnet.net
  • Subject: [mg64583] finding the position of a pattern in list
  • From: Gang Ma <contactmagang at gmail.com>
  • Date: Thu, 23 Feb 2006 00:34:20 -0500 (EST)
  • Sender: owner-wri-mathgroup at wolfram.com

Hi,
I am working on a program to do the following: My data is a list of 0  
and 1. For example, {0,0,1,1,1,0,0,1,1,1,0}. I want to find the  
positions of all the pattern of {0,1}.  In my previous example, the  
first {0,1} is at 2 and and the second {0,1} appears at 7. I can  
write a loop to do this, but I have several thousands such lists,   
the computation will be time consuming using loop.

My question is whether it is possible to use the pattern match to do  
this quickly.  If not for the list, do I need to convert the list to  
string then use some pattern match for string?  Thank you very much.

regards,

Gang Ma

  


  • Prev by Date: WolframSSH vs mathssh and private key command line option
  • Next by Date: Re: How if I want to assume that -------
  • Previous by thread: WolframSSH vs mathssh and private key command line option
  • Next by thread: Re: finding the position of a pattern in list