dinvbat: The von-Mises based symmetric inverse Batschelet distribution

In keesmulder/flexcircmix: Fit Mixtures of Flexible Circular Distributions

Description

The inverse Batschelet distribution, with mean direction mu, concentration parameter kp, and shape (peakedness) parameter lam. This is the von Mises based version, without a skewness parameter.

Usage

dinvbat(x, mu = 0, kp = 1, lam = 0, log = FALSE)

rinvbat(n, mu = 0, kp = 1, lam = 0)

Arguments

x	An angle in radians.
mu	A mean direction, in radians.
kp	Numeric, > 0,the concentration parameter.
lam	The shape parameter (peakedness), -1 < lam < 1.
log	Logical; whether to return the log of the probability or not.
n	The number of random variates to obtain.

Value

Numeric. For dinvbat, the probability or log-probability of angle x given the parameters. For rinvbat, a vector of random variates from the inverse Batschelet distribution.

Functions

• rinvbat: Random generation

Examples

dinvbat(3)

# Peaked distribution
curve(dinvbat(x, lam = .8), -pi, pi)

# Flat-topped distribution
curve(dinvbat(x, lam = -.8), -pi, pi)

keesmulder/flexcircmix documentation built on May 29, 2019, 3:02 a.m.