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  1. L

    COMPoisson family for underdispersed count data

    I checked the residuals of the model, it's normal distribution ... thank you.
  2. L

    COMPoisson family for underdispersed count data

    Hello, I am trying to test whether the species richness of butterflies in a natural reserve differs betweeen habitats and years separately (not enough statistical replicates to make intercation). The monitoring of butterflies started in 2002. There is 3 different habitats : xerophytic and...