fminsearchbnd 1.0

Fminsearch does not admit bound constraints.However simple transformation methods exist toconvert a bound constrained problem into anunconstrained problem.Fminsearchbnd is used exactly like fminsearch,except that bounds are applied to the variables.The bounds are applied internally, using atransformation of the variables. (Quadratic forsingle bounds, sin(x) for dual bounds.)The bounds are inclusive inequalities, which admitthe boundary values themselves, but will not permitANY function evaluations outside the bounds.Note that fminsearchbnd allows the user to exactly fix a variable at some given value, by setting both bounds to the exact same value.Example usage:rosen = @(x) (1-x(1)).^2 + 105*(x(2)-x(1).^2).^2;% unconstrained fminsearch solutionfminsearch(rosen,[3 3])ans = 1.0000 1.0000% Lower bounds, no upper boundsfminsearchbnd(rosen,[2.5 2.5],[2 2],[])ans = 2.0000 4.0000Lower bounds on both vars, upper bound on x(2)fminsearchbnd(rosen,[2.5 2.5],[2 2],[inf 3])ans = 2.0000 3.0000

Requirements:	No special requirements
Platforms:	Matlab
Keyword:	Fminsearchbnd,  Permit,  Setting,  Values,  Variable
Users rating:	0/10