dawai: An R Package for Discriminant Analysis with Additional Information

View Researcher's Other Codes

Disclaimer: The provided code links for this paper are external links. Science Nest has no responsibility for the accuracy, legality or content of these links. Also, by downloading this code(s), you agree to comply with the terms of use as set out by the author(s) of the code(s).

Authors David Conde, Miguel A. Fernández, Bonifacio Salvador, Cristina Rueda
Journal/Conference Name Journal of Statistical Software
Paper Category
Paper Abstract The incorporation of additional information into discriminant rules is receiving increasing attention as the rules including this information perform better than the usual rules. In this paper we introduce an R package called dawai, which provides the functions that allow to define the rules that take into account this additional information expressed in terms of restrictions on the means, to classify the samples and to evaluate the accuracy of the results. Moreover, in this paper we extend the results and definitions given in previous papers (Fernandez, Rueda, and Salvador 2006, Conde, Fernandez, Rueda, and Salvador 2012, Conde, Salvador, Rueda, and Fernandez 2013) to the case of unequal covariances among the populations, and consequently define the corresponding restricted quadratic discriminant rules. We also define estimators of the accuracy of the rules for the general more than two populations case. The wide range of applications of these procedures is illustrated with two data sets from two different fields, i.e., biology and pattern recognition.
Date of publication 2015
Code Programming Language R

Copyright Researcher 2022