# circles.plot: Plot circles In smacpod: Statistical Methods for the Analysis of Case-Control Point Data

## Description

`plot.circles` creates a plot with one or more circles (or adds them to an existing plot).

## Usage

 ```1 2``` ```circles.plot(coords, r, add = FALSE, ..., nv = 100, border = NULL, ccol = NA, clty = 1, density = NULL, angle = 45, clwd = 1) ```

## Arguments

 `coords` A matrix of coordinates with the centroid of each circle. `r` A vector containing the radii of the circles. The length of `r` must equal the number of rows of `coords`. `add` A logical value indicating whether the circles should be added to an existing plot. Default is `FALSE`. `...` Additional arguments passed to the `plot` function. `nv` Number of vertices to draw the circle. `border` A vector with the desired border of each circle. The length should either be 1 (in which case the border is repeated for all circles) or should match the number of rows of `coords`. `ccol` A vector with the desired color of each circle. The length should either be 1 (in which case the color is repeated for all circles) or should match the number of rows of `coords`. `clty` A vector with the desired line type of each circle. The length should either be 1 (in which case the line type is repeated for all circles) or should match the number of rows of `coords`. `density` A vector with the density for a patterned fill. The length should either be 1 (in which case the density is repeated for all circles) or should match the number of rows of `coords`. See `polygon` `angle` A vector with the angle of a patterned fill. The length should either be 1 (in which case the angle is repeated for all circles) or should match the number of rows of `coords`. See `polygon` `clwd` A vector with the desired line width of each circle. The length should either be 1 (in which case the line width is repeated for all circles) or should match the number of rows of `coords`.

## Author(s)

Joshua French

`draw.circle`, `polygon`
 ```1 2 3 4 5 6 7 8``` ```co = cbind(c(1, 2, 5, 6, 9), c(1, 2, 5, 6, 9)) r = c(1.25, 1.25, 1.25, 1.25, 1.25) # draw circles circles.plot(co, r) circles.plot(co, r, ccol = c("blue", "blue", "orange", "orange", "brown"), density = c(10, 20, 30, 40, 50), angle = c(45, 135, 45, 136, 90)) ```