search for: piorno

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2003 Mar 12
2
quasipoisson, glm.nb and AIC values
...t term. My problem is that I want to compare the quasipoisson and negative binomial models, and I have a NA value and a negative one. Can I obtain an AIC for the quasipoisson model? What about the negative AIC? Can I use it or do you think that anything is wrong? Thanks in advance, -- Vicente Piorno Departamento de Ecologia y Biologia Animal - Universidad de Vigo EUIT Forestal - Campus Universitario 36005 Pontevedra SPAIN
2002 Oct 23
2
loglinear models
...models. I am interested in obtaining the parameter values and their standard errors. Parameters are easily obtained, but I haven't found the way of obtaining their standad errors. Is this possible with the loglin function? If not, is there any other function to get them? Many thanks, -- Vicente Piorno Departamento de Ecolox?a e Biolox?a Animal EUT Forestal Campus Universitario 36005 Pontevedra SPAIN -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-help mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", o...