A list of settings and values for vtreat unsupervised fitting.
Please see
https://github.com/WinVector/vtreat/blob/master/Examples/fit_transform/fit_transform_api.md,
designTreatmentsZ
, and
prepare.treatmentplan
for details.
unsupervised_parameters(user_params = NULL)
list of user overrides.
filled out parameter list