[求助] 求助高人：使用Matlab或Origin进行非线性拟合的方法已有1人参与

5楼: Originally posted by hollya at 2019-07-23 03:45:31
a=
f=@(k,x) k(1)*k(2)*k(3)*x./((1-k(2)*x).*(1-k(2)*x+k(3)*k(2)*x))
% k(1)=m,k(2)=k,k(3)=c
k0=
for ii=1:10
    k=lsqcurvefit(f,k0,a(:,1),a(:,2))
    k0=k
end
plot(a(:,1),a(:,2),'o',a(:,1),f(k, ...