Ross Quinlan

Software available for download:

• FOIL Release 6: (shell archive)
• FFOIL Release 2: (shell archive)
• C4.5 Release 8: (gzipped tar file)
  I no longer provide support for C4.5. Also, please note restrictions on distribution.
  C4.5 has been superseded by C5.0. Source code for C5.0 is available from Rulequest Research under the Gnu General Public Licence. You might also want to review a comparison of C4.5 and the GPL version of C5.0. (C5.0 will accept files in C4.5 format.)

The software above is provided in the hope that it may be useful, but without warranty of any kind.

You may also be interested in my company page.