Question

matlab 最小二乘函数lsqcurvefit拟合函数参数的时候出现错误

我用lsqcurvefit 函数拟合参数的时候出现下面的错误，有哪位大侠可以帮忙解决啊~~谢谢啊！！！！！！！

??? Error using ==> optim\private\lsqncommon
User supplied function ==> imgfun
failed with the following error:

Subscript indices must either be real positive integers or logicals.

Error in ==> lsqcurvefit at 165
[x,Resnorm,FVAL,EXITFLAG,OUTPUT,LAMBDA,JACOB] = ...

Error in ==> imgmodel at 14
x=lsqcurvefit(@imgfun,x0,xdata,ydata);

Answer 1

Subscript indices must either be real positive integers or logicals.
这句话是说下标必须是正整数 或是逻辑的 由此推出你在程序中自己定义的imgfun函数运行的数据出现了错误 你好好检查检查

Answer 2

把源程序拿来看看