`nwsummarize`

Summarize a network

Syntax

nwsummarize 
[netlist]
[,
mat
matonly
detail
save(filename)
silent
]


`mat`	Display adjacency matrix of the network
`matonly`	Only display adjacency matrix of the network
`detail`	Calculate additional network measures, e.g. centralization, transitivity
`save(filename)`	Save network measures in file
`silent`	Compute and return results without displaying anything

Description

nwsummarize calculates and displays a variety of network summary statistics. If no netlist is specified, summary statistics are calculated for the current network.

Examples

. nwwebuse florentine

cmd. nwsummarize flomarriage
hline 50
Network name: flomarriage
Network id: 2
Nodes: 16
Directed: false
Valued: false
Two-mode: false
Selfloop: false
Edges: 20
Minimum value: 0
Maximum value: 1
Density: .1666666666666667
. nwclear
. nwrandom 5, prob(.2) name(mynet)
. nwsummarize mynet, mat
hline 50
Network name: mynet
Network id: 1
Nodes: 5
Directed: true
Valued: false
Two-mode: false
Selfloop: false
Arcs: 5
Minimum value: 0
Maximum value: 1
Density: .25
1 2 3 4 5
hline 21
1 c 0 0 0 0 1 c
2 c 0 0 0 0 0 c
3 c 0 0 0 0 1 c
4 c 0 0 0 0 0 c
5 c 1 1 0 1 0 c
hline 21

Supported network types

Binary: yes. Directed: yes. Weighted: yes, dyad/triad/degree summaries reflect tie values where applicable. Signed: not checked. Two-mode: not checked.

Stored results

nwsummarize stores the following in r():

Scalars

r(id) internal ID of the network
r(nodes) number of nodes in the network
r(minval) minimum of tie values
r(maxval) maximum of tie values
r(edges) number of edges (undirected network)
r(arcs) number of arcs (directed network)
r(edges_sum) sum of edge values (undirected network)
r(arcs_value) sum of arc values (directed network)
r(density) network density
r(reciprocity) network reciprocity
r(transitivity) network transitivity
r(missing_edges) number of missing (undefined) dyads
r(selfloops) number of self-loops
r(nodes1) number of mode-1 nodes (two-mode networks only)
r(nodes2) number of mode-2 nodes (two-mode networks only)

Macros

r(directed) if network is directed or not (undirected)
r(valued) if network is declared as valued or not
r(mode2) if network two-mode or not
r(name) name of the network (alias: r(netname))
r(labs) comma-separated node labels
r(vars) Stata variable names used to represent the network
r(selfloop) if the network permits self-loops
r(provenance) provenance/source note, if set (see nwname)
r(temporal) if the network is temporal
r(temporaltype) temporal storage type, if r(temporal) is true
r(mode1_desc) description of mode 1 (two-mode networks only)
r(mode2_desc) description of mode 2 (two-mode networks only)

The full set above is inherited unchanged from the internal nwname call this command makes on your behalf - see nwname’s own Stored results section for the authoritative, complete list (this command does not add or remove any of it).

nwsummarize