Swarm Intelligence Algorithms

168 Firefly Algorithm

20 ns=f i n d l i m i t s ( n , ns , Lb , Ub) ;

21 %% Ranking f i r e f l i e s by t h e i r l i g h t i n t e n s i t y / o b j e c t i v e s

22 [ Lightn , In dex ]= s o r t ( Li ght n ) ;

23 ns_tmp=ns ;

24 f o r i =1:n ,

25 ns ( i , : )=ns_tmp( In dex ( i ) , : ) ;

26 end

27 %% Find th e cu r re nt b e s t and d i s p l a y ou t pu t s

28 f b e s t=Li ght n (1 ) , n be s t=ns ( 1 , : )

29 end % End o f t loo p ( up t o tMax )

Listing 13.2

The main part of the firefly algorithm.

The third part is the objective function and ways for implementing the

lower and upper bounds. This will ensure that all solution vectors should be

within the