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...ot;sqrt"), then will the maximized value of log-likelihood function using logLik() be valid (other than the issue that the dispersion parameter is counted as a parameter in aic() within glm())? Thank you in advance and I appreciate it very much for any advices that are offered. Best regards, TzengYih Lam TzengYih Lam, PhD Student College of Forestry Oregon State University [[alternative HTML version deleted]]

Dear R Users, When using zeroinfl() function to fit a Zero-Inflated Negative Binomial (ZINB) model to a dataset, the summary() gives an estimate of log(theta) and its standard error, z-value and Pr(>|z|) for the count component. Additionally, it also provided an estimate of Theta, which I believe is the exp(estimate of log(theta)). However, if I would like to have an standard error of Theta