matlab调用fminun函数后命令窗口显示Local minimum found......可是为什么没有输出我要得到的返回值
只输出这个，没有结果，我的fminunc函数是这样写的
[optTheta,functionVal,exitFlag] = fminunc(@costFunction,initialTheta,options);
陷入局部极小了。你的Function是不光滑的，或者说是非单极值的。
处理办法Matlab帮助里搜“Local Minimum Possible”,2012a里面第一条结果就是。
列了一堆处理办法，常用的是改变tolerance、改变初始点、改选搜索算法。
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
When the Solver Might Have Succeeded
On this page…
Final Point Equals Initial Point
Local Minimum Possible
Final Point Equals Initial Point
The initial point seems to be a local minimum or solution because the first-order optimality measure is close to 0. You might be unhappy with this result, since the solver did not improve your initial point.
处理办法Matlab帮助里搜“Local Minimum Possible”,2012a里面第一条结果就是。
列了一堆处理办法，常用的是改变tolerance、改变初始点、改选搜索算法。
━━━━━━━━━━━━━━━━━━━━━━━━━━━━
When the Solver Might Have Succeeded
On this page…
Final Point Equals Initial Point
Local Minimum Possible
Final Point Equals Initial Point
The initial point seems to be a local minimum or solution because the first-order optimality measure is close to 0. You might be unhappy with this result, since the solver did not improve your initial point.
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