getlambda: Object constructor for the incidence matrix representing a partial order on variables.
Description
The function creates an object of class incidence representing a partial order on the set of variables.
Usage
getlambda(...)
Value
an object of class incidence.
Arguments
...
Cover relations between variable pairs.
Author
Alberto Arcagni
Details
Cover relations between pair of ariables are defined by the names of the two variables and the symbols < and >. For instance, if variable A is covered by variable B, write the cover relation as A < B or B > A. If a variable is not comparable to the others, write the name of the variable alone.