cv.alpha returns the optimal robustness parameter
cv.alpha(X, alphas = 10)A list containing
The choices of the robust parameters.
Corresponding cross validation score.
Best choice of the robustness parameter.
matrix, whose singular value decomposition is required
numeric vector, vector of robustness parameters to try.
S. Roy, A. Basu and A. Ghosh (2021), A New Robust Scalable Singular Value Decomposition Algorithm for Video Surveillance Background Modelling https://arxiv.org/abs/2109.10680