| conta_normal | Sample contaminated normal |
| corKendall | Kendall's tau |
| corQuadrant | Quadrant correlation coefficients |
| corSpearman | Spearman correlation |
| covGK | Gnanadesikan-Kettenring estimator for *covariance* |
| covNPD | NPD estimator for *covariance* based on Qn |
| covOGK | Orthogonalized Gnanadesikan-Kettenring (OGK) estimator for *covariance* |
| covSpearmanU | SpearmanU estimator for *covariance* |
| cvglasso | Cross validation to chose tuning parameter of glasso |
| nearPPSD | nearest positive semi-definite projection of a matrix |
| negLLrobOmega | -log Likelihood on test set |
| raltert | Alternative multivariate t distribution |
| rmvnorm | Multivariate normal distribution with 0 mean |
| rmvt | Multivariate t distribution |
| robglasso | glasso with robust covariance estimations |