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MathGroup Archive 2005

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Re: Need to be able to diff 2 pieces of text.

  • To: mathgroup at smc.vnet.net
  • Subject: [mg55639] Re: Need to be able to diff 2 pieces of text.
  • From: "Hans Michel" <hmichel at sdc.cox.net>
  • Date: Fri, 1 Apr 2005 05:36:10 -0500 (EST)
  • References: <d2g6hg$f8q$1@smc.vnet.net>
  • Reply-to: "Hans Michel" <hmichel at sdc.cox.net>
  • Sender: owner-wri-mathgroup at wolfram.com

Luc

If you are using Mathematica 5.1> look into the ClusterAnalysis. 
Particularly the

EditDistance[s1,s2]. I think this is the Levenstein Function.

I have not used EditDistance  in Mathematica (don't even know if it takes 
options) but the Levenstein Function works well for small amount of text. I 
think the new Combinatorica package contains a Longest Common Substring 
function. So I would look there also.

Hans

"Barthelet, Luc" <lucb at ea.com> wrote in message 
news:d2g6hg$f8q$1 at smc.vnet.net...
> Anyone got a text diff engine under Mathematica? I will need to run it
> under webMathematica to show differences to users.
> Author tools has a notebook difference, but I have not figured out the
> details of how it works.
>
> Thanks for the MD5 answers by the way, it worked perfectly!
>
> Luc.
> 


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