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The R package VGAM has function vglm which can be used to fit all sorts of Poisson-esque models. You can use it to specify a one-inflated model, so something like vglm(Y~ZY~X,family=oipospoisson(),data=data). See here for more details.
The R package VGAM has function vglm which can be used to fit all sorts of Poisson-esque models. You can use it to specify a one-inflated model, so something like vglm(Y~Z,family=oipospoisson(),data=data). See here for more details.
The R package VGAM has function vglm which can be used to fit all sorts of Poisson-esque models. You can use it to specify a one-inflated model, so something like vglm(Y~X,family=oipospoisson(),data=data). See here for more details.
The R package VGAM has function vglm which can be used to fit all sorts of Poisson-esque models. You can use it to specify a one-inflated model, so something like vglm(Y~Z,family=oipospoisson(),data=data). See here for more details.