comparison: Multivariate Likelihood Ratio Calculation and Evaluation

Functions for calculating and evaluating likelihood ratios from uni/multivariate continuous observations. The package includes the two-level functions to calculate the LR assuming multivariate normality, and another with drops this assumption and uses a multivariate kernel density estimate. The package also contains code to perform empirical cross entropy (ECE) calibration of likelihood ratios. The LR functions are based primarily on Aitken, C.G.G. and Lucy, D. (2004) <doi:10.1046/j.0035-9254.2003.05271.x>, "Evaluation of trace evidence in the form of multivariate data," Journal of the Royal Statistical Society: Series C (Applied Statistics), 53: 109-122. The ECE functions are based primarily on D. Ramos and J. Gonzalez-Rodrigues, (2008) "Cross-entropy analysis of the information in forensic speaker recognition," in Proc. IEEE Odyssey, Speaker Lang. Recognit. Workshop.

Getting started

Package details

AuthorDavid Lucy [aut], James Curran [aut, cre], Agnieszka Martyna [aut]
MaintainerJames Curran <j.curran@auckland.ac.nz>
LicenseGPL (>= 2)
Version1.0-5
URL github.com/jmcurran/comparison
Package repositoryView on CRAN
Installation Install the latest version of this package by entering the following in R:
install.packages("comparison")

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comparison documentation built on Aug. 5, 2020, 5:07 p.m.