Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10345202 | Computer Methods and Programs in Biomedicine | 2005 | 9 Pages |
Abstract
The logistic regression model has been in use in statistical analysis for many years. The paper introduces a spline model to remove the linear restriction on logit function. By considering knot locations as free variables, spline approximation of data is improved. The number of knots and the degree of the spline functions can still be determined by using a model selection procedure. Moreover, a knot, seen as a free parameter for a piecewise linear spline, represents a break point in the logit function which may be interpreted as a threshold value. This method is applied to a clinical trial for an in vitro fertilization program.
Related Topics
Physical Sciences and Engineering
Computer Science
Computer Science (General)
Authors
F. Bessaoud, J.P. Daures, N. Molinari,