2 papers
stat.ME2025
Latent class multivariate probit and latent trait models for evaluating test accuracy without a gold standard: A simulation study
Enzo Cerullo, Sean Pinkney, Alex J. Sutton +3
In the context of an imperfect gold standard, latent class modelling can be used to estimate accuracy of multiple medical tests. However, the conditional independence (CI) assumpti…
stat.CO2024
A Short Note on a Flexible Cholesky Parameterization of Correlation Matrices
Sean Pinkney
We propose a Cholesky factor parameterization of correlation matrices that facilitates a priori restrictions on the correlation matrix. It is a smooth and differentiable transform…