Kernel Density Estimation for Random Symmetric Positive Definite Matrices

Kernel smoothing for Wishart random matrices described in Daayeb, Khardani and Ouimet (2025) , Gaussian and log-Gaussian models using least square or likelihood cross validation criteria for optimal bandwidth selection.


Kernel Density Estimation for Random Symmetric Positive Definite Matrices

An R package with Wishart, log-Gaussian and Gaussian kernels for positive definite matrices, with optimal bandwidth selection based on least square cross validation or leave-one-out cross-validation criteria.

Reference manual

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install.packages("ksm")

1.1 by Leo Belzile, 4 months ago


Report a bug at https://github.com/lbelzile/ksm/issues


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


Authors: Leo Belzile [aut, cre] , Frederic Ouimet [aut]


Documentation:   PDF Manual  


MIT + file LICENSE license


Imports Rcpp

Suggests cubature, rmarkdown, knitr, tinytest

Linking to Rcpp, RcppArmadillo


See at CRAN