Quickstart
==========

We start by creating an SPN. Using a Domain-Specific Language (DSL), we can quickly create an SPN of categorical
leave nodes like this:

.. code:: python

    from spn.structure.leaves.parametric.Parametric import Categorical

    spn = 0.4 * (Categorical(p=[0.2, 0.8], scope=0) *
                 (0.3 * (Categorical(p=[0.3, 0.7], scope=1) *
                         Categorical(p=[0.4, 0.6], scope=2))
                + 0.7 * (Categorical(p=[0.5, 0.5], scope=1) *
                         Categorical(p=[0.6, 0.4], scope=2))))
        + 0.6 * (Categorical(p=[0.2, 0.8], scope=0) *
                 Categorical(p=[0.3, 0.7], scope=1) *
                 Categorical(p=[0.4, 0.6], scope=2))