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Aide de Scilab >> Optimisation et Simulation > Optimization base > optimbase_checkcostfun


Checks the cost function.


opt = optimbase_checkcostfun(opt)



The object of TOPTIM type (tlist).


The optimbase_checkcostfun function checks that the cost function is correctly connected. This function generates an error if the cost function is not connected.

This function takes into account for the cost function at the initial guess x0 only. She checks that all values of the index argument are valid. If there are non-linear constraints, optimbase_checkcostfun checks that the matrix has the correct shape.

This function requires at least one call to the cost function to make the necessary checks.


function [y, index]=rosenbrock(x, index)
    y = 100*(x(2)-x(1)^2)^2 + (1-x(1))^2;

opt = optimbase_new ();
opt = optimbase_configure(opt,"-numberofvariables",2);
opt = optimbase_configure(opt,"-x0",[1.1 1.1]');
opt = optimbase_configure(opt,"-function",rosenbrock);
opt = optimbase_checkcostfun(opt)
opt = optimbase_destroy(opt);

See also

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Last updated:
Mon Jan 03 14:33:07 CET 2022