The C4.5 induction system

Copyright J.R. Quinlan, 1987, 1988, 1989, 1990, 1991, 1992. This software may not be distributed in any form without permission of the copyright holder.

The C4.5 system consists of four principal programs:
1) the decision tree generator ('c4.5'),
2) the production rule generator ('c4.5rules'),
3) the decision tree interpreter ('consult'), and
4) the production rule interpreter ('consultr').

This release also contains stuff that may be helpful in running experiments:
5) a csh shell script for cross-validation ('xval.sh'), and
6) two ancillary programs ('xval-prep' and 'average').

There is a Unix-style (brief) manual entry for the main programs and for their verbose output mode (type "man verbose" and "man verbrules"). A better guide to using the system is provided in my book, 'C4.5: Programs for Machine Learning', Morgan Kaufmann 1992.
[Note: changes since the book was published are recorded in the file Modifications in the Src directory.]


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