No operator description 'W-MultilayerPerceptron'

laurab

Hi,

I am having trouble trying to use 'W-MultilayerPerceptron' in java.  I am initilaising rapidminer:

System.setProperty("rapidminer.home", "file:///C:/Rapid-I/RapidMiner-4.3");
RapidMiner.init();

And rapidMiner.jar and weka.jar are both on the build path. I am  trying to create the opertor as follows:

Operator model = OperatorService.createOperator("W-MultilayerPerceptron");
model.setParameter("L", "0.3"); //learning rate

But I always get the following error:

com.rapidminer.operator.OperatorCreationException: No operator description object given for 'W-MultilayerPerceptron'.

I really cant see what i am doing wrong?

Thanks Laura

land

Hi Laura,
does this error occur if you use rapid miner operators?

Greetings,
  Sebastian

laurab

Hi Sebastian,

Thanks for getting back to me. I have fixed the error now thouhg.  I was not setting Rapidminer.home correctly. 

I was setting:

"file:///C:/Rapid-I/RapidMiner-4.3"

but have changed it :

"C:/Rapid-I/RapidMiner-4.3"

and this works fine now.

Thanks alot
Laura