Tail-adjusted Beta Probability Density Function
dtab(x, mu, phi, delta, log = FALSE)
vector of (non-negative) values.
mean/s in (0, 1) for the beta distribution.
dispersion parameter (positive) for the beta distribution.
rounding parameter in (0, 0.5) for the tail adjustment.
logical; if TRUE, probabilities, p, are given as log(p).
The (log) probability mass at x, given lambda and pi.