Determine the function to be used in the conjunctive aggregation step of evaluate()
.
and_function(method = EnumEvalMethod, and = NULL)
Returns the function and
if not NULL
.
Otherwise, it determines the result depending on method
:
Fails with an error if the result is not an R function.
One of: "set"
(default), "prob"
, "fuzzy"
or "fuzzynorm"
.
Some conjunctive aggregation function of the form function(num_vector)
, or NULL
.
evaluate
, or_function()
.