Classification with discrete and continuous variables via general mixed-data models

A. R. de Leon, A. Soo and T. Williamson

Journal of Applied Statistics, 2011, vol. 38, issue 5, 1021-1032

Abstract: We study the problem of classifying an individual into one of several populations based on mixed nominal, continuous, and ordinal data. Specifically, we obtain a classification procedure as an extension to the so-called location linear discriminant function, by specifying a general mixed-data model for the joint distribution of the mixed discrete and continuous variables. We outline methods for estimating misclassification error rates. Results of simulations of the performance of proposed classification rules in various settings vis-à-vis a robust mixed-data discrimination method are reported as well. We give an example utilizing data on croup in children.

Date: 2011
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DOI: 10.1080/02664761003758976

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