PREPARATION
Sometimes, DataSets in KEEL format cannot be used in experiments, because bring some errors. Probably, these errors are due to a problem with the algorithm connected to the DataSet. The algorithm is not prepared for a "special feature" present in the DataSet, like null values, nominal attributes, etc.
To solve this problem, in this section, users can find a lot of tools or utilities, that modify the content of a DataSet and generate a new file. This new file can be used in experiments like others.
To apply a transformation is very simple, since there are necessary only three steps:
Transformation have been classificated in three types:
Also it is possible to modify the transformation parameters (only if the algorithm allow it); just press the "Parameters" button, and a new dialog containing the list of parameters will be opened. This dialog seems like this: