How to define variable sets for changing value of i ?

for Example, in below code, I defined 'DSet' and 'DCount' initially. I want to define these sets for each value of i.

 for i=1:nPop
        DSet=[];
        DCount=0;
    end

    F{1}=[];

    for i=1:nPop
        for j=i+1:nPop
            p=ResultM(:,:,i);
            p1=Obj1(i);
            p2=Obj2(i);
            q=ResultM(:,:,j);
            q1=Obj1(j);
            q2=Obj2(j);

            if Dominates(p1,q1,p2,q2)
                DSet=[DSet j];
                DCount=DCount+1;
            end
        end
end

I want to define the sets 'DSet' and 'DCount' for each i. I tried 'DSet(i)' and 'DCount(i)', but this doesn't work. Please help me in getting the right solution for this. Thanks in anticipation.

[Star Strider]

Please describe what you want to do and what your variables are (and their row and column dimensions).

[MANISH KUMAR]

Sir, I want to define empty sets ([]); DSet and DCount for each individual value of i. For example, if i =1:5, then I need 5 different sets of DSet and DCount, so that as the loop runs from i=1 to i=5 and if statement is true, these sets can be updated and fetched separately for each i.

Answer 1

[Star Strider]

I still do not understand what you want to do. However, if you want to preallocate them, that is easy.

Delete these lines because you do not need the loop:

for i=1:nPop
    DSet=[];
    DCount=0;
end

and replace them with:

DSet = zeros(1,nPop);
DCount = 0;

and assuming that I understand what you want to do, the if block then becomes:

if Dominates(p1,q1,p2,q2)
    DCount=DCount+1;
    DSet(DCount) = j;
end

Experiment to get the result you want.