gusucode.com > Toolbox_all_algorithms > Toolbox_all_algorithms/WOA/initialization.m
%_________________________________________________________________________% % Whale Optimization Algorithm (WOA) source codes demo 1.0 % % % % Developed in MATLAB R2011b(7.13) % % % % Author and programmer: Seyedali Mirjalili % % % % e-Mail: ali.mirjalili@gmail.com % % seyedali.mirjalili@griffithuni.edu.au % % % % Homepage: http://www.alimirjalili.com % % % % Main paper: S. Mirjalili, A. Lewis % % The Whale Optimization Algorithm, % % Advances in Engineering Software , in press, % % DOI: http://dx.doi.org/10.1016/j.advengsoft.2016.01.008 % % % %_________________________________________________________________________% % This function initialize the first population of search agents function Positions=initialization(SearchAgents_no,dim,ub,lb) Boundary_no= size(ub,2); % numnber of boundaries % If the boundaries of all variables are equal and user enter a signle % number for both ub and lb if Boundary_no==1 Positions=rand(SearchAgents_no,dim).*(ub-lb)+lb; end % If each variable has a different lb and ub if Boundary_no>1 for i=1:dim ub_i=ub(i); lb_i=lb(i); Positions(:,i)=rand(SearchAgents_no,1).*(ub_i-lb_i)+lb_i; end end