sna: is.connected – R documentation

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sna

is.connected

Is a Given Graph Connected?

Description

Returns TRUE iff the specified graphs are connected.

Usage

is.connected(g, connected = "strong", comp.dist.precomp = NULL)

Arguments

`g`	one or more input graphs.
`connected`	definition of connectedness to use; must be one of `"strong"`, `"weak"`, `"unilateral"`, or `"recursive"`.
`comp.dist.precomp`	a `component.dist` object precomputed for the graph to be analyzed (optional).

Details

is.connected determines whether the elements of g are connected under the definition specified in connected. (See component.dist for details.) Since is.connected is really just a wrapper for component.dist, an object created with the latter can be supplied (via comp.dist.precomp) to speed computation.

Value

TRUE iff g is connected, otherwise FALSE

Author(s)

Carter T. Butts buttsc@uci.edu

References

West, D.B. (1996). Introduction to Graph Theory. Upper Saddle River, N.J.: Prentice Hall.

Examples

#Generate two graphs:
g1<-rgraph(10,tp=0.1)
g2<-rgraph(10)

#Check for connectedness
is.connected(g1)  #Probably not
is.connected(g2)  #Probably so

sna

Tools for Social Network Analysis

v2.6

GPL (>= 2)

Authors

Carter T. Butts [aut, cre, cph]

Initial release

2020-10-5