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- Title
Use of log-skew-normal distribution in analysis of continuous data with a discrete component at zero.
- Authors
Chai, High Seng; Bailey, Kent R.
- Abstract
The problem of analyzing a continuous variable with a discrete component is addressed within the framework of the mixture model proposed by Moulton and Halsey ( Biometrics 1995; 51:1570-1578). The model can be generalized by the introduction of the log-skew-normal distribution for the continuous component, and the fit can be significantly improved by its use, while retaining the interpretation of regression parameter estimates. Simulation studies and application to a real data set are used for demonstration. Copyright © 2008 John Wiley & Sons, Ltd.
- Publication
Statistics in Medicine, 2008, Vol 27, Issue 18, p3643
- ISSN
0277-6715
- Publication type
Article
- DOI
10.1002/sim.3210