Tukey's Bulging Rule: Why Use It, and What to Do When It Fails

Data defines the model by dint of genetic programming, producing the best decile table.

Tukey's Bulging Rule: Why Use It, and What to Do When It Fails
Bruce Ratner, Ph.D.

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"A very effective and simple technique for straightening data is re-expressing the variables, which uses Turkey’s Ladder of Powers and the Bulging Rule. I present the details of the technique (as found in Ratner, B., Statistical Modeling and Analysis for Database Marketing: Effective Techniques for Mining Big Data, pages 39 - 41), CRC Press, Boca Raton, 2006) Then, I discuss:

Why use Tukey's Bulging Rule; namely, the importance of straight-line relationships or straight data.
When Tukey’s Bulging Rules fails; namely, which data conditions are not met.
What to do when Tukey's Bulging Rule fails to straighten the data; namely, I offer a (nonstatistical) data mining method [1], [2] that has no data conditions to satisfy.

For more information about this article, call Bruce Ratner at 516.791.3544 or 1 800 DM STAT-1; or e-mail at br@dmstat1.com.