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 are necesary only three steps:

  1. Select an existing DataSet.
  2. Select the name of the transformed DataSet.
  3. Select the transformation to apply.

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: