nties {sna} | R Documentation

## Find the Number of Possible Ties in a Given Graph or Graph Stack

### Description

`nties` returns the number of possible edges in each element of `dat`, given `mode` and `diag`.

### Usage

    nties(dat, mode="digraph", diag=FALSE)

### Arguments

`dat` | a graph or set thereof.
`mode` | one of ``digraph'', ``graph'', and ``hgraph''.
`diag` | a boolean indicating whether or not diagonal entries (loops) should be treated as valid data; ignored for hypergraphic (``hgraph'') data.

### Details

`nties` is used primarily to automate maximum edge counts for use with normalization routines.

### Value

The number of possible edges, or a vector of the same

### Note

For two-mode (hypergraphic) data, the value returned isn't technically the number of edges per se, but rather the number of edge memberships.

### Author(s)

Carter T. Butts buttsc@uci.edu

### Examples

    #How many possible edges in a loopless digraph of order 15?
    nties(rgraph(15),diag=FALSE)

[Package sna version 1.1 Index]