在MATLAB 中,Func-count 和Iteration 是优化算法输出的两个重要的参数,它们用于监测和评估优化算法的性能。以下是它们的区别和联系: 实际例子 1.Func-count(函数计数): 含义: Func-count 表示在优化过程中对目标函数进行评估的总次数。每次评估都对应着对目标函数的一次计算。 作用: Func-count
MATLAB funcion Matlab function count 目录 语法 说明 示例 包含一个输出的函数 包含多个输出的函数 脚本文件中的函数 函数文件中的多个函数 带参数验证的函数 function函数是声明函数名称、输入和输出。 语法 function [y1,...,yN] = myfun(x1,...,xM) 1. 说明 function [y1,...,yN] = myfun(x1,......
Func-count f(x) f(x) Generations 61 17700 -0.005392 0.5644 12 62 17985 -0.005392 0.5084 13 63 18270 -0.005392 0.5214 14 64 18555 -0.005392 0.483 15 65 18840 -0.005392 0.554 16 66 19125 -0.005392 0.5391 17 Optimization terminated: average change in the fitness value less than options....
Func-count x f(x) Procedure 2 -1 -5.13779 initial 3 -0.513876 -4.02235 interpolation 4 -0.513876 -4.02235 bisection 5 -0.473635 -3.83767 interpolation 6 -0.115287 0.414441 bisection 7 -0.115287 0.414441 interpolation 8 -0.132562 -0.0226907 interpolation 9 -0.131666 -0.0011492 interpolation 10 -0.1316...
Func-count x f(x) Procedure 2 -1 -5.13779 initial 3 -0.513876 -4.02235 interpolation 4 -0.513876 -4.02235 bisection 5 -0.473635 -3.83767 interpolation 6 -0.115287 0.414441 bisection 7 -0.115287 0.414441 interpolation 8 -0.132562 -0.0226907 interpolation ...
funcCount Number of function evaluations algorithm 'golden section search, parabolic interpolation' message Exit message Limitations The function to be minimized must be continuous. fminbnd might only give local solutions. fminbnd can exhibit slow convergence when the solution is on a boundary of the...
funcCount = 0; OUTPUT.stepsize = []; if strcmpi(OUTPUT.algorithm,activeSet) || strcmpi(OUTPUT.algorithm,sqp) OUTPUT.lssteplength = []; else % trust-region-reflective, interior-point OUTPUT.cgiterations = []; end if strcmpi(OUTPUT.algorithm,interiorPoint) || strcmpi(OUTPUT.algorithm,active...
funcCount: 13 algorithm: 'golden section search, parabolic interpolation'（二）无约束非线性多变量优化问题 这里我们介绍两个命令：fminsearch()和fminunc()，前者适合处理阶次低但是间断点多的函数，后者则对于高阶连续的函数比较有效。命令fminsearch()的格式为：X= fminsearch(fun,X0)[X,fval,...
Optimization terminated: first-order optimality measure less than options.TolFun and maximum constraint violation is less than options.TolCon.X = 10.2991 1.5136fval = 6.9410exitflag = 1output = iterations: 3 funcCount: 12 lssteplength: 1 stepsize: 0.1441 ...
exitflag 描述退出条件:exitflag>0,表明目标函数收敛于解x处;exitflag0=,表明目标函数评价或迭代的最大次数;exitflag<0,表明目标函数不收敛 output 包含优化结果信息的输出结构:Iterations:迭代次数;Algorithm:所采用的算法;FuncCount:函数评价次数 所有优化函数4...