Generations_entropy

 function H_gens = Generations_entropy(inds_gens,Card,laplace)

 Generations_entropy: Calculates the entropy accumulated by a
                      set of individuals (population or selected individual) 
                      at each generation of the EDA.
 INPUT
 inds_gens{maxgen} = A cell array with the population or the selected
                     individual at each generation. It is obtained from
                     Cache{1,:} or Cache{2,:}
 Card: Cardinalities of the variables
 laplace: Determines wether or not Laplace correction is used in the computation
 of the probabilities. Laplace=1 (It is used), otherwise  it is not.

 OUTPUT
 H_gens: It is an array with the calculated entropies at each generation.
 

 Example:
 for i=1:maxgen
   inds_gens{i}=Cache{1,i};
 end
 H_gens = Generations_entropy(inds_gens,Card,0);
 X = [1,maxgen]
 plot(X,H_gens);

 Last version 5/11/08. Carlos Echegoyen (carlos.echegoyen@ehu.es)

0001 function H_gens = Generations_entropy(inds_gens,Card,laplace)
0002 % function H_gens = Generations_entropy(inds_gens,Card,laplace)
0003 %
0004 % Generations_entropy: Calculates the entropy accumulated by a
0005 %                      set of individuals (population or selected individual)
0006 %                      at each generation of the EDA.
0007 % INPUT
0008 % inds_gens{maxgen} = A cell array with the population or the selected
0009 %                     individual at each generation. It is obtained from
0010 %                     Cache{1,:} or Cache{2,:}
0011 % Card: Cardinalities of the variables
0012 % laplace: Determines wether or not Laplace correction is used in the computation
0013 % of the probabilities. Laplace=1 (It is used), otherwise  it is not.
0014 %
0015 % OUTPUT
0016 % H_gens: It is an array with the calculated entropies at each generation.
0017 %
0018 %
0019 % Example:
0020 % for i=1:maxgen
0021 %   inds_gens{i}=Cache{1,i};
0022 % end
0023 % H_gens = Generations_entropy(inds_gens,Card,0);
0024 % X = [1,maxgen]
0025 % plot(X,H_gens);
0026 %
0027 % Last version 5/11/08. Carlos Echegoyen (carlos.echegoyen@ehu.es)
0028 
0029 max_gen = size(inds_gens,2);
0030 
0031 for i=1:max_gen
0032     H_gens(i) = Individuals_entropy(inds_gens{i},Card,laplace);
0033 end