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  "Title": "The Variational Bayesian Method for Sparse PCA",
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  "Description": "Contains functions for a variational Bayesian method for\nsparse PCA proposed by Ning (2020) <arXiv:2102.00305>. There\nare two algorithms: the PX-CAVI algorithm (if assuming the\nloadings matrix is jointly row-sparse) and the batch PX-CAVI\nalgorithm (if without this assumption). The outputs of the main\nfunction, VBsparsePCA(), include the mean and covariance of the\nloadings matrix, the score functions, the variable selection\nresults, and the estimated variance of the random noise.",
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