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2008 Jan 07
0
R vglm new family writing: mix Poisson/multinomial
Hi dear R users, 1) I would like to know if there is a simple way to define a vglm family which would be a mix of poisson variables and bernoulli variables (0/1 response) for idea this would be invoked like this: vglm(...,family=mixpoissonmultinom(npoisson,n01response)) where the n's give the number of each type of response. 2) and a simpler question : How to use constraints in rrvglm? for example, i want to regress X1 X2 X3 X4 (poisson variables with log-link) on two factor-type variables N1, N2 but i would like to use X1 and X2 [or something like 1(X1...