nwnetworktypes
How commands classify binary/directed/weighted/signed/two-mode networks
Description
nwcommands networks can be binary or valued (weighted), undirected or directed, and one-mode or two-mode (bipartite) - see nwintro for the underlying data model. No single command supports every combination equally: some are inherently structural and apply unchanged to any network (e.g. nwdrop); some have a well-defined weighted generalization but a separate binary-only default (e.g. nwclustering); some have a two-mode form of the same concept that they use automatically on a two-mode network (e.g. nwdegree; the option onemode forces the one-mode computation); a few are simply not implemented for a combination yet.
Rather than guess, every nw* command’s own help file has a Supported network types section (immediately after its Description) stating explicitly what it does with a directed, weighted, signed, or two-mode network - whether that is full native support, an explicit binary-only/one-mode-only restriction with a clear error, silent-but-documented dichotomization, or simply “not applicable” for a command with no network-type-dependent behavior at all. That per-command section is always the authoritative answer for a specific command; this page explains the vocabulary those sections use and points to the small set of commands that have been read closely enough to also carry a fuller, source-verified classification.
Examples
nwsummarize reports a loaded network’s own classification along these same dimensions:
. nwwebuse florentine, nwclear
. nwsummarize flomarriage
See also
nwcommands version 3.17.6, 9 November 2026 (check your installed version)