what is the problem of this crossover ?

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Ameer Kadhim 2018-3-26

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https://ww2.mathworks.cn/matlabcentral/answers/390764-what-is-the-problem-of-this-crossover

编辑： Geoff Hayes 2018-3-26

hello everybody... i am code decision variable space to consider it as a chromosome (the value of x from (1 to 56 ))

% Initialize Position of chromosome 
pop(1).Position=randi(VarMax); ( i.e individual1 represent x1=7) 
pop(1).Position=randi(VarMax); ( i.e individual2 represent  x2=7)

when i using this type of crossover and when for example the value of x1=7 , x2=7 , always y1 and y2 = 7 .

what is the type of crossover that enhanced the values of y1,y2 ?

x1=7 , x2=7 , gamma=0.3 , VarMin = 1 , VarMax = 56 ( decision variable space is integer)

is this type of crossover is correct ???

function [y1, y2]=Crossover(x1,x2,gamma,VarMin,VarMax)
      alpha=unifrnd(-gamma,1+gamma,size(x1));
      y1=alpha.*x1+(1-alpha).*x2;
      y2=alpha.*x2+(1-alpha).*x1;
      y1=max(y1,VarMin);
      y1=min(y1,VarMax);
      y1=round(y1);
      y2=max(y2,VarMin);
      y2=min(y2,VarMax);
      y2=round(y2);
  end