search for: zapoisson

...)/4,n=4),G3=list(V=diag(4)/4,n=4))) m1<-MCMCglmm(fixed=cbind(resp1,resp2,resp3) ~ trait:(expl1 + expl2+ expl3+ expl4+ expl5...)+trait-1, random=~us(trait):rand1+us(trait): rand1: rand2+us(trait): rand1: rand2: rand3, rcov=~us(trait):units,family=c("gaussian","gaussian","zapoisson"),nitt=20000,burnin=5000,thin=10,prior=prior,data=dat) However, for zero-altered models it is recommended in the MCMCglmm course notes to constrain over-dispersion to be the same for both processes (the zero-alteration and poisson process) by using a trait by unit interaction in the R-structu...

...e models but found no clear answer. My first approach to this wil be to wrote a formula like: Abundance~BA+CI+BA*CI. 2.- Even when I try to fit a model without interactions I can't do it because I obtain the following error: > fit<-MCMCglmm(Abundancia~BA+CI, random=NULL, > family="zapoisson",data=Trucha) Error in MCMCglmm(Abundancia ~ BA + CI, random = NULL, family = "zapoisson", : please use idh(trait):units or us(trait):units or trait:units for error structures involving multinomial data with more than 2 categories or zero-infalted/altered/hurdle models I don'...

...ld Wald Distribution Family Function weibull Weibull Distribution Family Function weightsvglm Prior and Working Weights of a VGLM fit yeo.johnson Yeo-Johnson Transformation zanegbinomial Zero-Altered Negative Binomial Distribution zapoisson Zero-Altered Poisson Distribution zeta Riemann's Zeta Function zetaff Zeta Distribution Family Function zibinomial Zero-Inflated Binomial Distribution Family Function zipf Zipf Distribution...