Identifies lowest z value from list of z values.
lowest.z(z_list, elig_paths, prop_cutoff, n_subj)
Returns name of parameter associated with lowest z. If no z meets the criteria, returns NA.
A list of z values across individuals.
A character vector containing eligible paths that gimme is allowed to drop from the model at a given stage.
The proportion of individuals for whom a path must be nonsignificant in order for it to be dropped from the models. NULL if used at the individual-level.
The number of subjects in a given stage of the search. If in the group stage, n_subj equals the number of subjects. If in the subgroup stage, n_subj equals the number of individuals in a given subgroup. At the individual stage, n_subj = 1.