update_beta_MM_ls updates beta for L2E multivariate regression using MM
update_beta_MM_ls(y, X, beta, tau, max_iter = 100, tol = 1e-04)Returns a list object containing the new estimate for beta (vector) and the number of iterations (scalar) the update step utilized
Response
Design matrix
Initial vector of regression coefficients
Precision estimate
Maximum number of iterations
Relative tolerance