Class "GLMresponse" and class "transInit"
Specific instances of response models for depmix
models. class
Both GLMresponse
and transInit
contain the response
-class. In addition to the slots of that class, these classes have the following slots:
formula
:: A formula that specifies the model.family
:: A family object specifying the link function. See the GLMresponse
help page for possible options.The GLMresponse
-class offers an interface to the glm
functions that are subsequently used in fitting the depmix
model of which the response is a part.
The transInit
is an extension of response
that is used to model the transition matrix and the initial state probabilities by the use of a multinomial logistic model, the difference being that in fact the response is missing as the transitions between states are not observed. This class has its own fit function which is an interface to the multinom function in nnet
.
The following functions should be used for accessing the corresponding slots:
npar
:: The number of parameters of the model.getdf
:: The number of non-fixed parameters.Ingmar Visser & Maarten Speekenbrink