Discretization of Continuous-Valued Attributes

As RDN Boost model accepts discrete values in its input predicate logic form, a new discretization functionality has been added as follows;

  1. In the mode file, user has to specify the predicate and its arguments to discretize along with the number of bins desired. The discretization uses equal frequency distribution. An example from background file is mentioned below:

For the following predicate hdl(+Patient,#Time, #hdlValue).

We want to discretize the 2nd and 3rd argument and into 2 and 3 bins respectively. disc: hdl([2,3],[2,3]).

Another example For a predicate a1c(+Patient,+a1cValue).

We want to discretize the 1rst argument and into 4 bins. disc: a1c([2],[4]).