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Setting correct data type for output port of Operator
I recently encountered a problem while I was trying to define the correct data type for the output ports of my curstom operator in my extension.
It seems to be not possible to define a data type at all. No matter which data type I define, this port's data type is in RapidMiner always displayed as an IOObject. I was trying the same for the input ports of this operator and it works perfectly...
Can somebody help me to set the correct data type for the output port of an operator? How can I do it within the Java class of my operator?
Thanks in advance.