cec2014测试函数matlab
时间: 2023-07-20 22:45:41 浏览: 284
CEC2014测试函数是一个基于全局优化问题的测试函数集合,包括了30个不同的函数。这些函数都是基于实数最优化问题而设计的,用于评估不同优化算法的性能。
以下是CEC2014测试函数的Matlab代码:
```matlab
function [f, g] = cec14_func(x, func_num)
% CEC14 Function interface for MATLAB
% See also cec14_func_data
persistent func_data;
if isempty(func_data)
load cec14_func_data.mat;
end
func_num = floor(func_num);
if func_num < 1 || func_num > 30
error('func_num should be within [1, 30].');
end
fhd = str2func(func_data.func_name{func_num});
[f, g] = fhd(x, func_data.oscillation{func_num}, func_data.bias{func_num});
end
```
其中,`cec14_func_data.mat`是一个包含了CEC2014测试函数参数的Matlab数据文件。使用时,只需要调用`cec14_func`函数并输入函数编号和待优化的参数即可得到函数值和梯度。例如,要计算第1个函数在$x=[1,2,3]$处的函数值和梯度,可以使用以下代码:
```matlab
[x, f, g] = cec14_func([1, 2, 3], 1);
```
注意,这里的梯度是可选的,如果不需要梯度,只需要省略输出变量即可。
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