Re: [R] Multinomial model and p-values

2013-07-03 Thread peter dalgaard
On Jul 2, 2013, at 21:21 , Luciano La Sala wrote: > Hello everyone, > > I have a dataset which consists of "Pathology scores" (Absent, Mild, Severe) > as outcome variable, and two main effects: Age (two factors: twenty / thirty > days old) and Treatment Group (four factors: infected without ATB

Re: [R] Multinomial model and p-values

2013-07-02 Thread Duncan Mackay
Hi Luciano There are a number of types of ordinal regression and you need to be specific about that. There are a number of ordinal packages to do ordinal regression. MASS::polr arm::bayespolr ordinal VGAM repolr geepack etc Each of them has specific requirements about coding of the variables