Documentation of democantilever

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Function Synopsis

[xnew, GeaOpt] = democantilever

Help text

 DEMO for multiobjective optimization of cantilever beam system

 This function provides an example for using the GEATbx for 
 multiobjective optimization.
 The options are defined by the structure method providing a 
 higher flexibility.
 
 Syntax:  democantilever(OptVariant, FunVariant)

 Input parameter:
    no input prameter

 Output parameter:
    xnew, GeaOpt - output parameter from geamain2, see there

 See also: mobjcantilever, geaoptset, geamain2

Cross-Reference Information

Listing of function democantilever

% Author:   Hartmut Pohlheim
% History:  19.08.2004  file created (based on demomop)
%           08.05.2005  documentation extended


function [xnew, GeaOpt] = democantilever

   % Get default parameters for real variables (globally oriented)
   % and define special parameters
   GeaOpt = geaoptset( tbx3real ...
                      , 'NumberSubpopulation',        5 ...           % Number of subpopulation
                      , 'NumberIndividuals',         [50, 30, 30, 40, 50] ...     % Number of individuals per subpopulation
                     );

   % Define objective function to use and the respective parameters
   %#function mobjcantilever
   objfun = 'mobjcantilever';

   % Get variable boundaries from objective function
   VLUB = geaobjpara(objfun, [1 2]);
   
   % Switch on the multi-objective ranking and the plotmop visualization (para is > 10)
   % Define the goals of the objectives
   GeaOpt = geaoptset( GeaOpt , 'Selection.RankingMultiobj', 15 ...
                              , 'System.ObjFunGoals',  [Inf, 5, 300] ...
                     );

   % Define the output options, path and name of result data files
   GeaOpt = geaoptset( GeaOpt, tbx3output ...
                      , 'Output.TextInterval',        1 ...           % Text output every xx generations
                      , 'Output.GrafikInterval',      5 ...          % Grafic results every 10 generations
                      ... % , 'Output.GrafikMethod',        111    ...      % Grafic method to use
                      ... % , 'Output.GrafikStyle',         614144 ...      % Grafic styles for specified methods
                     );

% termination criteria with their options
   GeaOpt = geaoptset( GeaOpt ...
                      , 'Termination.Method',         [1 ]  ...   % Termination method: use max gen and max time
                      , 'Termination.MaxGenerations', 100   ...   % Terminate after xx generations
                     );

% Call main function for optimization
   PopInit = [];
   [xnew, GeaOpt] = geamain2(objfun, GeaOpt, VLUB, PopInit);


% End of script