i got error at the line"strea​m(j).Posit​ion=stream​(j).Positi​on+2.*rand​(1).*(sea.​Position-s​tream(j).P​osition);" in Subscript indices must either be real positive integers or logicals. please help me.

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sharanya senthil
sharanya senthil 2017-3-24
评论： KSSV 2017-3-24
for i=1:Npop
pop(i).Position=LB+(UB-LB).*rand;
pop(i).Cost=objective_function(pop(i).Position);
end
[pop, F]=NonDominatedSorting(pop); % Non-dominated sorting
pop=CalcCrowdingDistance(pop,F); % Calculate crowding distance
pop=SortPopulation(pop); % Sort population
%------------- Forming Sea, Rivers, and Streams --------------------------
sea=pop(1);
river=pop(2:Nsr);
stream=pop(Nsr+1:end);
cs=[sea.CrowdingDistance';[river.CrowdingDistance]';stream(1).CrowdingDistance];
f=0;
if length(unique(cs))~=1
CN=cs-max(cs);
else
CN=cs;
f=1;
end
NS=round(abs(CN/(sum(CN)+eps))*N_stream);
if f~=1
NS(end)=[];
end
NS=sort(NS,'descend');
% ------------------------- Modification on NS -----------------------
i=Nsr;
while sum(NS)>N_stream
if NS(i)>1
NS(i)=NS(i)-1;
else
i=i-1;
end
end
i=1;
while sum(NS)<N_stream
NS(i)=NS(i)+1;
end
if find(NS==0)
index=find(NS==0);
for i=1:size(index,1)
while NS(index(i))==0
NS(index(i))=NS(index(i))+round(NS(i)/6);
NS(i)=NS(i)-round(NS(i)/6);
end
end
end
NS=sort(NS,'descend');
NB=NS(2:end);
FF=zeros(max_it,numel(sea.Cost));
for i=1:max_it
%---------- Moving stream to sea---------------------------------------
for j=1:NS(1)
stream(j).Position=stream(j).Position+2.*rand(1).*(sea.Position-stream(j).Position);
stream(j).Position=min(stream(j).Position,UB);
stream(j).Position=max(stream(j).Position,LB);

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