Reference

All functions
as_edge_tbl()	Convert network graphs to edge tables as tibbles/data.frames.
classify_options()	Classification options for direct, ambigious, and no effect.
nc_estimate_exposure_links() nc_estimate_outcome_links()	Compute model estimates between an external (exposure or outcome) variable and a network.
nc_estimate_network()	Create an estimate of the metabolic network as an undirected graph.
nc_standardize()	Standardize the metabolic variables.
simulated_data	Simulated dataset with an underlying Directed Graph structure for the metabolites.