Sigma_Estimation        Estimation of the correlation matrix
WLasso-package          Variable Selection for Highly Correlated
                        Predictors
Whitening_Lasso         Whitening Lasso
X                       Example of a design matrix of a linear model
Y                       Example of a response variable of a linear
                        model.
top                     Thresholding to zero of the smallest values
top_thresh              Thresholding to a given threshold of the
                        smallest values
