A lightweight implementation used to model circular seasonality
(e.g., spawning day within a year) without adding dependencies.
Usage
von_mises_pdf(x, mu, kappa)
Arguments
- x
Angle in radians.
- mu
Mean direction in radians.
- kappa
Concentration parameter (higher means more concentrated).
Value
The probability density evaluated at x.
Examples
# Density at angle pi when centered at pi with moderate concentration
von_mises_pdf(pi, mu = pi, kappa = 2)
#> [1] 0.5158854