adjacency.matrix {copCAR} | R Documentation |

## Return an adjacency matrix for a square lattice.

### Description

Return an adjacency matrix for a square lattice.

### Usage

```
adjacency.matrix(m, n = NULL)
```

### Arguments

`m` |
the number of rows in the lattice. |

`n` |
the number of columns in the lattice. Defaults to |

### Details

This function builds the adjacency matrix for the `m`

by `n`

square lattice.

### Value

A matrix `A`

of 0s and 1s, where `A_{ij}`

is equal to 1 iff vertices `i`

and `j`

are adjacent.

[Package

*copCAR*version 2.0-4 Index]