File list (Check if you may need any files):
Factor Graph and Sum Product algrithm\and_node.m
.....................................\connect.m
.....................................\cp2_node.m
.....................................\cp3_node.m
.....................................\cp_node.m
.....................................\equ_node.m
.....................................\even_parity_node.m
.....................................\evident_node.m
.....................................\Examples\and_example.m
.....................................\........\explained_away.m
.....................................\........\factor_graph_test.m
.....................................\........\Hidden_Markov_Chain.m
.....................................\........\hypothesis.m
.....................................\........\Kalman_Filter_Example.m
.....................................\........\LDPC.m
.....................................\........\Linear_Backward_Example.m
.....................................\........\noisy_or_example.m
.....................................\........\or_example.m
.....................................\........\sim_hmm.m
.....................................\........\sudoku.m
.....................................\........\sudoku_4x4_01.mat
.....................................\........\sudoku_4x4_02.mat
.....................................\........\sudoku_9x9_01.mat
.....................................\........\sudoku_9x9_02.mat
.....................................\factor_node.m
.....................................\ls_add_node.m
.....................................\ls_equ_node.m
.....................................\ls_gain2_node.m
.....................................\ls_marginal.m
.....................................\marginal.m
.....................................\noisy_or_node.m
.....................................\not2_node.m
.....................................\or_node.m
.....................................\sdk_node.m
.....................................\SumProductLab Reference.pdf
.....................................\template.m
.....................................\Examples
Factor Graph and Sum Product algrithm