Is[node] = sum((-1)**(len(rv)+1)*Hs[rv] for rv in nx.dfs_preorder_nodes(self._lattice, node))
// Mobius inversion of the above, resulting in the Shannon atoms.
for node in nx.topological_sort(self._lattice)[:-1]:
kids = islice(nx.dfs_preorder_nodes(rlattice, node), 1, None)
atoms[node] = Is[node] - sum(atoms[child] for child in kids)
After Change
Is[node] = sum((-1)**(len(rv)+1)*Hs[rv] for rv in nx.dfs_preorder_nodes(self._lattice, node))
// Mobius inversion of the above, resulting in the Shannon atoms.
for node in list(nx.topological_sort(self._lattice))[:-1]:
kids = islice(nx.dfs_preorder_nodes(rlattice, node), 1, None)
atoms[node] = Is[node] - sum(atoms[child] for child in kids)
