cov_lasso               Fit a linear regression model using a
                        covariance matrix
cv_lasso                Fit a model using a design matrix with cross
                        validation
lasso                   Fit a model using a design matrix
logit_lasso             Fit a logistic regression model using a design
                        matrix
plot_cv_lasso           Plot a cross validation error path
plot_lasso              Plot a solution path
predict_lasso           Predict responses
setup_lambda            Set up a lambda sequence
