Robust Exponential Factor Analysis

A robust alternative to the traditional principal component estimator is proposed within the framework of factor models, known as Robust Exponential Factor Analysis, specifically designed for the modeling of high-dimensional datasets with heavy-tailed distributions. The algorithm estimates the latent factors and the loading by minimizing the exponential squared loss function. To determine the appropriate number of factors, we propose a modified rank minimization technique, which has been shown to significantly enhance finite-sample performance. For more detail of Robust Exponential Factor Analysis, please refer to Hu et al. (2026) .


Reference manual

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install.packages("REFA")

0.2.0 by Jiaqi Hu, 10 months ago


Browse source code at https://github.com/cran/REFA


Authors: Jiaqi Hu [cre, aut] , Xueqin Wang [aut]


Documentation:   PDF Manual  


GPL (>= 3) license


Imports fMultivar


See at CRAN