R: Graphical Operators

sna.operators {sna} | R Documentation

## Graphical Operators

### Description

These operators allow for algebraic manupulation of graph adjacency matrices.

### Usage

    ## S3 method for class 'matrix'
    e1 %c% e2

### Arguments

`e1` | an (unvalued) adjacency matrix.
`e2` | another (unvalued) adjacency matrix.

### Details

Currently, only one operator is supported. `x %c% y` returns the adjacency matrix of the composition of graphs with adjacency matrices `x` and `y` (respectively). (Note that this may contain loops.)

### Value

The resulting adjacency matrix.

### Author(s)

Carter T. Butts buttsc@uci.edu

### References

Wasserman, S. and Faust, K. (1994). Social Network Analysis: Methods and Applications. Cambridge: University of Cambridge Press.

### Examples

    #Create an in-star
    g<-matrix(0,6,6)
    g[2:6,1]<-1
    gplot(g)

    #Compose g with its transpose
    gcgt<-g%c%t(g)
    gplot(gcgt,diag=TRUE)
    gcgt

[Package sna version 2.7 Index]