8/19/2019 Siscer

1/1

function [xopt,fmin,it]=simpelso(N,maxit)

%to find minimum of single var function

dim = 1; %dimension of the problem

upbnd = !; %upper bound for init of the s"arm

l"bnd = 1#!; %lo"er bound for init of the s"arm

%initiali$ing s"arm and velocities

x = rand(N,dim)(upbnd&l"bnd) ' l"bnd;

v = rand(N,dim); %ecepatan a"al

[brs,ol]=si$e(x);

f=$eros(N,1);

rhomax=!;rhomin=!*;

for it=1+maxit

  rho(it)=rhomax&((rhomax&rhomin)maxit)it;

end

 

for i=1+brs

  f(i)=fungsi#(x(i,+));

end

 

%v=$eros(brs,ol);

it=1;

-best=x;

fbest=f

[minf,id]=min(f);

.best=x(id,+);

lastbest=[! !];

minftot=[];

 

"hile it/maxit

  r1=rand;r#=rand;

  for 0=1+brs

  v(0,+)=rho(it)v(0,+)'r1(-best(0,+)&x(0,+))'r#(.best&x(0,+));

  x(0,+)=x(0,+)'v(0,+);

  f(0)=fungsi#(x(0,+));  end

  %update -best

  changero" = f / fbest;

fbest=fbest(1&changero")'fchangero";

-best(find(changero"),+)=x(find(changero"),+);

[minf,id]=min(fbest);

minftot=[minftot;minf];

gbest=-best(id,+);

if sum(var(-best))/1e&

  brea

end

it=it'1

lastbest=.best;end

xopt=.best;

fmin=minf;

plot(minftot)

%%%%%%%%%%%%%%

function f=fungsi#(x)

f=(1!!&x!2#;