Additional options for the MM algorithm to compute EN S- and M-estimates.

mm_algorithm_options(
max_it = 500,
tightening_steps = 2,
en_algorithm_opts
)

## Arguments

max_it maximum number of iterations. how to make inner iterations more precise as the algorithm approaches a local minimum. for adaptive tightening strategy, how often to tighten until the desired tolerance is attained. options for the inner LS-EN algorithm. See en_algorithm_options for details.

## Value

options for the MM algorithm.