what is pca used for inference which term refers to the robust variance of the residuals matrix obtained from the sparse pca? what is the importance of an rv term in a sparse pca why is the rv in pca useful what is rv term of pca bic definition which term represents the robust variance of the ric term? what is the difference between a pca and a sparse pca what is the rv term in the pca for sparse modelling what is rv in BIC model selection what is the purpose of a sparse pca equation? what is cic what is an rv value in a sparse pca what is the rv term for bic what is the sparse pca in a sparse PCA what is the rv in pca what is the purpose of pca in data exploration what is rv in pca which criterion is the proxy for the likelihood function in a sparse BIC what is the significance of the rv term