[R-sig-ME] zero-inflated-count-data?

Ben Bolker bbolker at gmail.com
Sun Feb 25 19:05:35 CET 2018

There is no set proportion.  (For example, a Poisson distribution with
a mean of 0.01 is expected to be about 99% zeros, even without
zero-inflation.) There's a little bit of (bare-bones) discussion of
how to test for zero-inflation here:

On Sun, Feb 25, 2018 at 7:08 AM, C. AMAL D. GLELE <altessedac2 at gmail.com> wrote:
> Hi, dear all.
> From which proportion of zero a count should be considered as zero-inflated
> (in order to use a zero-inflated model for it's modelling)?
> In advance, thanks for your replies.
> Best,
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