This S4 class inherits from the S3 class environment.
The environment serves as a container to hold the data, poset and the
poset related functions of a probabilistic index model generated
by the function pim. The objects of this class
behave much like an environment, but contain some extra slots
with information on the objects inside the environment.
posetan environment of class pim.poset containing the poset-related functions
(normally these are L and R). This
environment has the object itself as parent.
data.namesa character vector containing the names of the vectors that represent the data
nobsinteger value indicating the number of observations in the environment
classesa _named_ list containing the classes of the
objects inside the environment. Note that the value should be the one
given by class.
is.completea logical value indicating whether or not the poset was added before.