%?-----------------------------------------------------------------------?%
%?Function?MOPSO?performs?a?Multi-objective?Particle?Swarm?Optimization???%
%?over?continous?functions.???????????????????????????????????????????????%
%?????????????????????????????????????????????????????????????????????????%
%???Input?parameters:?????????????????????????????????????????????????????%
%???????-?params:???Struct?that?contains?the?customized?parameters.???????%
%???????????*?params.Np:????????Number?of?particles.??????????????????????%
%???????????*?params.Nr:????????Repository?size?（in?particles）.???????????%
%???????????*?params.maxgen:????Maximum?number?of?generations.????????????%
%???????????*?params.W:?????????Inertia?coefficient.??????????????????????%
%???????????*?params.C1:????????Personal?confidence?factor.???????????????%
%???????????*?params.C2:????????Swarm?confidence?factor.??????????????????%
%???????????*?params.ngrid:?????Number?of?hypercubes?in?each?dimension.???%
%???????????*?params.maxvel:????Maximum?velocity?（search?space?percentage）%
%???????????*?params.u_mut:?????Uniform?mutation?percentage.??????????????%
%???????-?MultiObj:?Struct?that?contains?the?parameters?relative?to?the???%
%???????????????????optimization?functions.???????????????????????????????%
%???????????*?MultiObj.fun:?????Anonymous?multi-obj?function?to?minimize.?%
%???????????*?MultiObj.nVar:????Number?of?variables.??????????????????????%
%???????????*?MultiObj.var_min:?Vector?that?indicates?the?minimum?values??%
%???????????????????????????????of?the?search?space?in?each?dimension.????%
%???????????*?MultiObj.var_max:?Same?than?‘var_min‘?with?the?maxima.??????%
%?-----------------------------------------------------------------------?%
%???For?an?example?of?use?run?‘example.m‘.???????????????????????????????%
%?-----------------------------------------------------------------------?%
%???Author:??Victor?Martinez?Cagigal??????????????????????????????????????%
%???Date:????17/03/2017???????????????????????????????????????????????????%
%???E-mail:??vicmarcag?（at）?gmail?（dot）?com??????????????????????????????%
%???Version:?1.1??????????????????????????????????????????????????????????%
%???Log:??????????????????????????????????????????????????????????????????%
%???????????-?1.0:??Initial?version?without?mutation?[1]?（15/03/2017）.????%
%???????????-?1.1:??Crowding?and?mutation?are?implemented?[2].????????????%
%?-----------------------------------------------------------------------?%
%???References:???????????????????????????????????????????????????????????%
%????[1]Coello?C.?A.?C.?Pulido?G.?T.?&?Lechuga?M.?S.?（2004）.?Handling%
%???????multiple?objectives?with?particle?swarm?optimization.?IEEE?Tran-??%
%???????sactions?on?evolutionary?computation?8（3）?256-279.??????????????%
%?????????????????????????????????????????????????????????????????????????%
%????[2]Sierra?M.?R.?&?Coello?C.?A.?C.?（2005?March）.?Improving?PSO-???%
%???????based?multi-objective?optimiz