Recent content by Melkamu

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    Currrntly I'm doing masters thesis on migration using count model.poisson and neg.binomial have...

    Currrntly I'm doing masters thesis on migration using count model.poisson and neg.binomial have no problem but when i try zeroinflated and hurdle model some pridctor variable shows error in r software.....like computationally singular as.matrix.fit$hessian... So how I can fix the problem and...