lines.density.circular: Add a Plot for Kernel Density Estimation for Circular Data

In circular: Circular Statistics

Description

The lines add a plot for density.circular objects.

Usage

## S3 method for class 'density.circular'
lines(x, type = "l", zero.line = TRUE,
  points.plot = FALSE, points.col = 1, points.pch = 1, points.cex = 1,
  plot.type = c("circle", "line"), bins = NULL, offset=1, shrink = 1,
  tcl = 0.025, sep = 0.025, join = TRUE, nosort = FALSE,
  plot.info = NULL, zero = NULL, rotation = NULL, ...)

Arguments

x	an object of class density.circular.
type	plotting parameter with useful default.
zero.line	logical; if TRUE, add a base line at y = 0. Used when plot.type is "line".
points.plot	logical; if TRUE original data are added to the plot.
points.col, points.pch, points.cex	parameters used to draw the points.
plot.type	type of the plot.
bins	number of ticks to plot.
offset	the radius of the circle
shrink	parameter that controls the size of the plotted function. Default is 1.
tcl	length of the ticks.
sep	constant used to specify the distance between stacked points. Default is 0.025; smaller values will create smaller spaces.
join	logical: should the first and the last point joined.
nosort	logical: should the data sort before plotting. Defaults is to sort.
plot.info	an object from plot.circular that contains information on the zero, the rotation and next.points.
zero	the zero of the plot. Ignored if plot.info is provided.
rotation	the rotation of the plot. Ignored if plot.info is provided.
...	futher parameters passed to lines.default.

Value

A list with information on the plot: zero, rotation and next.points and, if available, the coordinates x and y.

Author(s)

Claudio Agostinelli

See Also

density.circular and plot.density.circular

Examples

set.seed(1234)
x <- rvonmises(n=100, mu=circular(pi), kappa=2)
y <- rvonmises(n=100, mu=circular(pi/2), kappa=2)
resx <- density(x, bw=25)
res <- plot(resx, points.plot=TRUE, xlim=c(-1.5,1), ylim=c(-1.1, 1.5))
resy <- density(y, bw=25)
lines(resy, points.plot=TRUE, col=2, points.col=2, plot.info=res)

Example output

Attaching package: 'circular'

The following objects are masked from 'package:stats':

    sd, var

circular documentation built on May 2, 2019, 4:42 p.m.