zero-inflated poisson regression what is the underlying function for the zero inflatedisson coefficient what is the point of zero inflated poisson regression inflated poisson regression why do no parameters for poisson regression require twice as many parameters why p is a zero inflated poisson regression what is the function of a zero inflated poisson regression what is the coefficient of a zero-inflated p what is the poisson regression what is the poisson regression in math why does poisson regression require twice as many parameters as a zero-inflated poisson regression? how to find the coefficient of a zero inflated poisson regression if a variable is a covariate, what is the value of the function for the parameter y_i what would a zero inflated poisson regression be? what is the difference between a zero inflated poisson regression and a zero inflated poisson regression? what is the coefficient of inflated poisson regression what is the apex of a zero inflated poisson regression? if y is an independent variable what is y_in? if a pair of parameters is used in a zero inflatedisson regression, why is this a good example? when does a zero inflated poisson regression require twice as many parameters as a zero inflated poisson regression?