circplot {amen} | R Documentation |

Produce a circular network plot.

```
circplot(
Y,
U = NULL,
V = NULL,
row.names = rownames(Y),
col.names = colnames(Y),
plotnames = TRUE,
vscale = 0.8,
pscale = 1.75,
mscale = 0.3,
lcol = "gray",
rcol = "brown",
ccol = "blue",
pch = 16,
lty = 3,
jitter = 0.1 * (nrow(Y)/(1 + nrow(Y))),
bty = "n",
add = FALSE
)
```

`Y` |
(matrix) m by n relational matrix. |

`U` |
(matrix) m by 2 matrix of row factors of Y. |

`V` |
(matrix) n by 2 matrix of column factors of Y. |

`row.names` |
(character vector) names of the row objects. |

`col.names` |
(character vector) names of the columns objects. |

`plotnames` |
(logical) plot row and column names. |

`vscale` |
(scalar) scaling factor for V coordinates. |

`pscale` |
(scalar) scaling factor for plotting characters. |

`mscale` |
(scalar) scaling factor for plotting characters. |

`lcol` |
(scalar or vector) line color(s) for the nonzero elements of Y. |

`rcol` |
(scalar or vector) node color(s) for the rows. |

`ccol` |
(scalar or vector) node color(s) for the columns. |

`pch` |
(integer) plotting character. |

`lty` |
(integer) line type. |

`jitter` |
(scalar) a number to control jittering of nodes. |

`bty` |
(character) bounding box type. |

`add` |
(logical) add to existing plot |

This function creates a circle plot of a relational matrix or social network.
If not supplied via `U`

and `V`

, two-dimensional row factors and
column factors are computed from the SVD of `Y`

, scaled versions of
which are used to plot positions on the outside edge (`U`

) and inside
edge (`V`

) of the circle plot. The magnitudes of the plotting characters
are determined by the magnitudes of the rows of `U`

and `V`

.
Segments are drawn between each row object `i`

and column object
`j`

for which `Y[i,j]!=0`

.

Peter Hoff

```
data(IR90s)
circplot(IR90s$dyadvars[,,1])
```

[Package *amen* version 1.4.5 Index]