你好,请教一下matlab coder相关问题 调用了曲线拟合函数lsqcurvefit不能...答:我只是将读取数据改成随机生成20个,结果 function quxiannihe z=rand(20,1);aa=size(z,1);bb=0.001*aa;cc=0.001:0.001:bb;x=cc';y=z;g=@(a,x)(a(1).*sin(a(2).*x+a(3))+a(4));a0=[0.012,250,-2,511];a=lsqcurvefit(g,a0,x,y);picture=plot(x,y,'k.',x,...