mrds: dht.deriv – R documentation

Become an expert in R — Interactive courses, Cheat Sheets, certificates and more!

dht.deriv

Computes abundance estimates at specified parameter values using Horvitz-Thompson-like estimator

Description

Computes abundance at specified values of parameters for numerical computation of first derivative with respect to parameters in detection function. An internal function called by DeltaMethod which is invoked by dht.se

Usage

dht.deriv(par, model, obs, samples, options = list())

Arguments

`par`	detection function parameter values
`model`	ddf model object
`obs`	observations table
`samples`	samples table
`options`	list of options as specified in `dht`

Value

vector of abundance estimates at values of parameters specified in par

Note

Internal function; not intended to be called by user

Author(s)

Jeff Laake