comp.lang.idl-pvwave archive: archive » Re: Chi-square decision trees

Home » Public Forums » archive » Re: Chi-square decision trees

Show: Today's Messages :: Show Polls :: Message Navigator
E-mail to friend

Re: Chi-square decision trees [message #30326 is a reply to message #30324]

Fri, 19 April 2002 14:36

Dick Jackson
Messages: 347
Registered: August 1998

Senior Member

"James Kuyper" <kuyper@gscmail.gsfc.nasa.gov> wrote in message
news:3CC04E6E.7060304@gscmail.gsfc.nasa.gov...
> Dick Jackson wrote:
>
>> The ID3 (Iterative Dichotomizer - 3) method of Ross Quinlan may be what
>> you're thinking of [...]
>
> However, I noticed that the web page had no links to an actual
> implmentation.

I just remembered that Quinlan followed up ID3 with an enhancement in 1993
called C4.5, and published a book and C code to implement it (ISBN:
1558602380). If it's of any use, the code's home should be at
http://www.cse.unsw.edu.au/~quinlan but I'm having trouble reaching it. A
mirror and very nice tutorial are at
http://www.cs.uregina.ca/~dbd/cs831/notes/ml/dtrees/c4.5/tut orial.html

This code works only with text files as input and output, which might not be
at all helpful to getting to work through IDL.

Cheers,
--
-Dick

Dick Jackson / dick@d-jackson.com
D-Jackson Software Consulting / http://www.d-jackson.com
Calgary, Alberta, Canada / +1-403-242-7398 / Fax: 241-7392

Report message to a moderator

[Message index]

		Re: Chi-square decision trees By: James Kuyper on Fri, 19 April 2002 14:22
		Re: Chi-square decision trees By: Dick Jackson on Fri, 19 April 2002 14:36
		Re: Chi-square decision trees By: James Kuyper on Fri, 19 April 2002 10:05
		Re: Chi-square decision trees By: Dick Jackson on Fri, 19 April 2002 09:38

Previous Topic:	Re: One file for each procedure/function?
Next Topic:	Re: High Quality Frame Grabber Suggestions

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

] [

]

Current Time: Sat Oct 11 06:25:12 PDT 2025

Total time taken to generate the page: 0.16121 seconds