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unbiasedness
2010 Feb 14
2
Estimated Standard Error for Theta in zeroinfl()
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