# Add Vertices to a Plot

### Description

`network.vertex`

adds one or more vertices (drawn using `polygon`

) to a plot.

### Usage

1 2 | ```
network.vertex(x, y, radius = 1, sides = 4, border = 1, col = 2,
lty = NULL, rot = 0, lwd = 1, ...)
``` |

### Arguments

`x` |
a vector of x coordinates. |

`y` |
a vector of y coordinates. |

`radius` |
a vector of vertex radii. |

`sides` |
a vector containing the number of sides to draw for each vertex. |

`border` |
a vector of vertex border colors. |

`col` |
a vector of vertex interior colors. |

`lty` |
a vector of vertex border line types. |

`rot` |
a vector of vertex rotation angles (in degrees). |

`lwd` |
a vector of vertex border line widths. |

`...` |
Additional arguments to |

### Details

`network.vertex`

draws regular polygons of specified radius and number of sides, at the given coordinates. This is useful for routines such as `plot.network`

, which use such shapes to depict vertices.

### Value

None

### Note

`network.vertex`

is a direct adaptation of `gplot.vertex`

from the `sna`

package.

### Author(s)

Carter T. Butts buttsc@uci.edu

### References

Butts, C. T. (2008). “network: a Package for Managing Relational Data in R.” *Journal of Statistical Software*, 24(2). http://www.jstatsoft.org/v24/i02/

### See Also

`plot.network`

, `polygon`

### Examples

1 2 3 4 |