dinvbat: The von-Mises based symmetric inverse Batschelet distribution

Description Usage Arguments Value Functions Examples

View source: R/InvBatschelet.R

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

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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

Examples

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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.