Estimate phi

Usage

get_phi_hat(y, family)

y

a numeric vector of species' densities.

family

a character specifying the family of the probability distribution assumed for density. The options are:

"gamma" (default): gamma parametrized in terms of its mean;
"lognormal": log-normal parametrized in terms of its mean;
"loglogistic": log-logistic parametrized in terms of its median (usual parametrization);
"lognormal_legacy": log-normal with its usual parametrization;

A numeric scalar representing an estimate for phi.

lcgodoy