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Identify Cliques in a Transition Network

Source: R/cliques.R
cliques.Rd

This function identifies cliques of a specified size in a transition network. It searches for cliques, i.e., complete subgraphs where every pair of nodes is connected, of size n in the transition matrix for the specified cluster in the tna object.

Usage

cliques(x, ...)

# S3 method for class 'tna'
cliques(x, size = 2, threshold = 0, sum_weights = FALSE, ...)

# S3 method for class 'group_tna'
cliques(x, size = 2, threshold = 0, sum_weights = FALSE, ...)

Arguments

x

A tna or a group_tna object.

...

Ignored.

size

An integer specifying the size of the cliques to identify. Defaults to 2 (dyads).

threshold

A numeric value that sets the minimum edge weight for an edge to be considered in the clique. Edges below this value are ignored. Defaults to 0.

sum_weights

A logical value specifying whether the sum of the weights should be above the threshold instead of individual weights of the directed edges. Defaults to FALSE.

Value

A tna_cliques object which is a list of two elements:

  • weights is a matrix of the edge weights in the clique.

  • inits is a numeric vector of initial weights for the clique.

If x is a group_tna object, a group_tna_cliques object is returned instead, which is a list or tna_cliques objects.

See also

Clique-related functions plot.group_tna_cliques(), plot.tna_cliques(), print.group_tna_cliques(), print.tna_cliques()

Examples

model <- tna(group_regulation)

# Find  2-cliques (dyads)
cliq <- cliques(model, size = 2)

model <- group_tna(engagement_mmm)
cliques(model)
#> Cluster 1 :
#> Number of 2-cliques = 3 (weight threshold = 0)
#> Showing 3 cliques starting from clique number 1
#> 
#> Clique 1
#>              Average Disengaged
#> Average    0.5420848  0.1458120
#> Disengaged 0.1617940  0.7902954
#> 
#> Clique 2
#>            Active    Average
#> Active  0.8598569 0.08919748
#> Average 0.3121032 0.54208478
#> 
#> Clique 3
#>                Active Disengaged
#> Active     0.85985688 0.05094565
#> Disengaged 0.04791061 0.79029542
#> 
#> Cluster 2 :
#> Number of 2-cliques = 2 (weight threshold = 0)
#> Showing 2 cliques starting from clique number 1
#> 
#> Clique 1
#>              Average Disengaged
#> Average    0.6296296  0.2777778
#> Disengaged 0.5111111  0.3333333
#> 
#> Clique 2
#>             Active   Average
#> Active  0.84090909 0.1590909
#> Average 0.09259259 0.6296296
#> 
#> Cluster 3 :
#> Number of 2-cliques = 2 (weight threshold = 0)
#> Showing 2 cliques starting from clique number 1
#> 
#> Clique 1
#>              Average Disengaged
#> Average    0.8194444 0.02777778
#> Disengaged 0.6000000 0.40000000
#> 
#> Clique 2
#>            Active   Average
#> Active  0.5833333 0.1250000
#> Average 0.1527778 0.8194444
#>