Togaware DATA MINING
Desktop Survival Guide
by Graham Williams
Google


Tuning Parameters

Implementations of the decision tree algorithm usually provide a collection of parameters for tuning how the tree is built. The defaults in Rattle (based on rpart's defaults) often provide a basically good tree. They are certainly a very good starting point, and indeed may be a satisfactory end point! However, tuning will be necessary where, for example, the target variable has very few examples of the particular class of interest.



Subsections

Copyright © 2004-2010 Togaware Pty Ltd
Support further development through the purchase of the PDF version of the book.
The PDF version is a formatted comprehensive draft book (with over 800 pages).
Brought to you by Togaware. This page generated: Sunday, 22 August 2010