Call: hurdle(formula = Egg.Number ~ Treatment + regime, data = eggs.all) Pearson residuals: Min 1Q Median 3Q Max -1.5939 -0.7777 -0.6355 0.6203 6.2367 Count model coefficients (truncated poisson with log link): Estimate Std. Error z value Pr(>|z|) (Intercept) 1.53489 0.13028 11.782 < 2e-16 *** TreatmentR.erythropolis 1.52967 0.14317 10.684 < 2e-16 *** TreatmentR.koreensis 0.89985 0.14852 6.059 1.37e-09 *** TreatmentR.rhodnii 1.87264 0.13786 13.584 < 2e-16 *** TreatmentR.rhodochrous 0.54656 0.16874 3.239 0.0012 ** TreatmentR.triatomae 0.75602 0.15451 4.893 9.94e-07 *** regimesingle.inoculation -0.15918 0.05722 -2.782 0.0054 ** Zero hurdle model coefficients (binomial with logit link): Estimate Std. Error z value Pr(>|z|) (Intercept) -0.6353 0.3603 -1.763 0.07789 . TreatmentR.erythropolis 0.7485 0.5401 1.386 0.16581 TreatmentR.koreensis 0.2115 0.4758 0.445 0.65664 TreatmentR.rhodnii 1.6882 0.6148 2.746 0.00603 ** TreatmentR.rhodochrous 0.1790 0.5171 0.346 0.72927 TreatmentR.triatomae 0.2919 0.4972 0.587 0.55712 regimesingle.inoculation 0.5778 0.3193 1.810 0.07032 . --- Signif. codes: 0 '***' 0.001 '**' 0.01 '*' 0.05 '.' 0.1 ' ' 1 Number of iterations in BFGS optimization: 15 Log-likelihood: -557.5 on 14 Df