control: a control list returned by control.gofN.ergm(); note that nsim and obs.twostage parameters in the control list are ignored in favor of those passed to the function directly.
negative_info: how to handle the situation in which the constrained variance exceeds the unconstrained: the corresponding action will be taken.
...: additional arguments to ergm_model(), simulate.ergm(), and summary.ergm_model().
Returns
an object of similar structure as that returned by gofN().