grad_zipnegloglik_nocov_cont

parm

ntimes

timeindex

udiff

<p>gradient for negative log likelihood function from zero-inflated Poisson hidden Markov model
without covariates, where zero-inflation only happens in state 1</p>

Fit zero-inflated Poisson hidden (semi-)Markov models with or without covariates by directly minimizing the negative log likelihood function using the gradient descent algorithm. Multiple starting values should be used to avoid local minima.

Zekun Xu

ziphsmm

Zero-Inflated Poisson Hidden (Semi-)Markov Models

grad_zipnegloglik_nocov_cont function

gradient for negative log likelihood function from zero-inflated Poisson hidden Markov model
without covariates, where zero-inflation only happens in state 1 — grad_zipnegloglik_nocov_cont

gradient for negative log likelihood function from zero-inflated Poisson hidden Markov model
without covariates, where zero-inflation only happens in state 1

grad_zipnegloglik_nocov_cont: gradient for negative log likelihood function from zero-inflated Poisson hidden Markov model without covariates, where zero-inflation only happens in state 1

Description

Usage

Arguments

Value