OPTIMUM SUBDIVISION OF A VARIABLE BY THE METHOD OF D. R. COX
Abstract
In the Journal of the American Statistical Association (Dec. 1957), D. R. Cox presented a method of dividing a continuous variable into k classes so that the grouping error is minimized for a stated k. He gave the points of subdivision of a unit normal variable for values of k from 2 to 6. However, he did not state the explicit equations needed to apply his method for higher values of k. This analysis facilitates the extension to higher values of k. The basic equations are derived, a feasible method of solving them is given, and the procedure is illustrated in detail for k = 7 and k = 8. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 1962
- Accession Number
- AD0278142
Entities
People
- John R. Southan
- Joseph G. Bryan
Organizations
- Air Force Cambridge Research Laboratories