def create_2node_graph():
""" Simple 2 node undirected graph """
g = UPGraph()
g.add_node(1, single_potential_1, [0, 1])
g.add_node(2, single_potential_2, [0, 1])
g.connect(1, 2, pairwise_potential)
return g
def create_problem3b_graph():
"""" Creates the graph structure, and associates potentials with graph structure """
g = UPGraph()
#create 6 nodes in graph
for k in range(6):
id = k+1
if id in (1, 3, 5):
pfunc = single_potential_1
else:
pfunc = single_potential_2
g.add_node(id, pfunc, [0, 1])
#add edges between relevant nodes for figure 1
g.connect(1, 2, pairwise_potential)
g.connect(1, 3, pairwise_potential)
g.connect(2, 4, pairwise_potential)
g.connect(2, 5, pairwise_potential)
g.connect(3, 6, pairwise_potential)
return g
