Convert Beta parameters between mean-dispersion and shape-shape

beta_mu_to_shape(mu, phi)

beta_shape_to_mu(shape1, shape2)

Arguments

mu

mean/s (non-negative).

phi

dispersion parameter.

shape1

first shape parameter (a.k.a. alpha).

shape2

second shape parameter (a.k.a. beta).

See dbeta for more details.

a list with the converted Beta parameters