/*----------------------------------------------------------------------
  domains
----------------------------------------------------------------------*/
dom(petal_length) = IR;
dom(petal_width) = IR;
dom(iris_type) = { Iris-setosa, Iris-versicolor, Iris-virginica };

/*----------------------------------------------------------------------
  decision tree
----------------------------------------------------------------------*/
drtree(iris_type) =
{ (petal_length|2.45)
  <:{ Iris-setosa: 50 },
  >:{ (petal_width|1.75)
      <:{ Iris-versicolor: 49, Iris-virginica: 5 },
      >:{ Iris-versicolor: 1, Iris-virginica: 45 }}};

/*----------------------------------------------------------------------
  number of attributes: 3
  decision tree height: 3
  number of nodes     : 5
  number of tuples    : 150
----------------------------------------------------------------------*/