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Thread: Delta aproach for binomial data with a lot of zeros

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    Delta aproach for binomial data with a lot of zeros




    Dear friends,

    I will like to ask if someone ever used any package in R to model binomial glm for the presence-absence representation of the data, and a continuous distribution such as Gamma glm for the positive values.
    Does someone knows any good package for such analysis?

    Thanks
    P

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    Re: Delta aproach for binomial data with a lot of zeros

    Maybe you can look at a zero-inflated model?

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    Re: Delta aproach for binomial data with a lot of zeros

    Thank you for your answer but I cant work with zero inflated models since my data are continuous with a lot of zeros and not counts.
    I was thinking to apply something similar like hurdle models.

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    Re: Delta aproach for binomial data with a lot of zeros


    From other posts some people are using the tweedie package and to run my analysis. anyone ever used it for similar purposes?

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