如题,解非线性方程组后exitflag结果大部分都是3,很少1.我的数据因为是外面采集的,难免不精确,得不到1很正常吧?能认为是可接受的结果吗?查了下3是Change in residual norm too small. 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 找了一下,一般来说正数都是理想的,负数都是不理想...
lsqcurvefit 函数返回 EXITFLAG = 3的意思是"目标函数的变化小于容许范围"。可以调整初值，即初始点X0。
如题,解非线性方程组后exitflag结果大部分都是3,很少1.我的数据因为是外面采集的,难免不精确,得不到1很正常吧?能认为是可接受的结果吗?查了下3是Change in residual norm too small. 扫码下载作业帮搜索答疑一搜即得 答案解析 查看更多优质解析 解答一 举报 找了一下,一般来说正数都是理想的,负数都是不理想...
找了一下，一般来说正数都是理想的，负数都是不理想的。when FSOLVE tried to take a step to try to reduce the value of your system of equations, it wasn't able to find a step that reduced the value by more than the tolerance you specified (or was chosen by default) as "clo...
matlab lsqcurvefit 曲线拟合时程序老出错程序如下:function f =curvefun(x,XDATA)f = x(1)*log10(1 + 1/(x(2)+XDATA.^x(3)));主程序为:XDATA = [1,2,3,4,5,6,7,8,9];YDATA = [0.726,0.151,0.055,0.028,0.018,0.009,0.005,0.003,0.003];x0 = [0.1 -1 0.1];[x,res] = lsqcu