🎉 🎉 RAPIDMINER 9.10 IS OUT!!! 🎉🎉
Download the latest version helping analytics teams accelerate time-to-value for streaming and IIOT use cases.
FrequencyDiscretization with use_sqrt_of_examples
My dataset contains also numerical attributes, and I want to discretize them with the FrequencyDiscretization operator. Moreover, I want RapidMiner choose for me the number of bins as the square root of the number of the examples.
In some circumstances my dataset can contain for some attributes null values for all the examples. Obviously, in such situations these attributes does not need to be discretized.
In spite of this, if I set to true the property "use_sqrt_of_examples" if I have an attribute (even textual) with all null values, RapidMiner does not complete the process, throwing this exception:
G Nov 24, 2009 9:25:51 AM: [Fatal] ArrayIndexOutOfBoundsException occured in 1st application of FrequencyDiscretization (FrequencyDiscretization)
G Nov 24, 2009 9:25:51 AM: [Fatal] Process failed: operator cannot be executed (-1). Check the log messages...
Does anyone know how can I perform the discretization making RapidMiner choosing for me the number of bins and avoiding the above mentioned problem?
Thanks in advance.