MATLAB: If i have two vector how to perform single crossover

functiongenetic algorithmvector

if i have
   p1 = [ 1 0 1 1 1 0 1 0 1 0 1 0 1 0 1 0 0 0 0 0 1 0 1 1]
   p2 = [ 0 0 0 0 1 1 1 1 0 0 1 1 0 1 0 1 1 1 0 0 0 1 0 0]
how to perform single crossover
c1 =    [ 1 0 1 1 1 0 1 0 1 0 1 0 0 1 0 1 1 1 0 0 0 1 0 0]
c2 =    [ 0 0 0 0 1 1 1 1 0 0 1 1 1 0 1 0 0 0 0 0 1 0 1 1]

Best Answer

This is how I do it in genetic algorithm programming:
p1 = [ 1 0 1 1 1 0 1 0 1 0 1 0 1 0 1 0 0 0 0 0 1 0 1 1];
p2 = [ 0 0 0 0 1 1 1 1 0 0 1 1 0 1 0 1 1 1 0 0 0 1 0 0];
CrossoverIndex = 12;                                            % This Would Usually Be Random
c1 = [p1(1:CrossoverIndex) p2(CrossoverIndex+1:end)];
c2 = [p2(1:CrossoverIndex) p1(CrossoverIndex+1:end)];
Producing:
c1 = 1     0     1     1     1     0     1     0     1     0     1     0     0     1       0     1     1     1     0     0     0     1     0     0
c2 = 0     0     0     0     1     1     1     1     0     0     1     1     1     0    1     0     0     0     0     0     1     0     1     1
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