Question

After creating a new operator and testing it, I need to set some configuration such as the definition of minsupp for frequent itemsets algorithms. Actually, I am defining this parameter inside my java code. I like the minsup parameter be viewed in the parameter list when I select the new operator in the Rapidminer GUI.

Answer 1

The solution is to add instances of PArameterType to a list and returning that list. following is an example:

@Override
public List<ParameterType> getParameterTypes() {
    List<ParameterType> types = super.getParameterTypes();
    types.add(new ParameterTypeDouble(MinSupp, "Defines the the minimum frequence of an Itemset", 0.0, 1.0));
    types.addAll(RandomGenerator.getRandomGeneratorParameters(this));
    return types;
}

and Thanks Marius,