How to concatenate output of objective function for lsqcurvefit?

조회 수: 2(최근 30일)
Hi All,
I have an objective function of the form
function [I_num] = PSw_EK_v7(k_m, s_bulk)
k_m is the variable I want to optimize while s_bulk is an array of input data which I want to feed the input function. I am using the lsqcurvefit/lsqnonlin function to fit my simulation to experimental data of the form.
s_bulk = [0, 5e-06, 10e-06, 20e-06, 50e-06, 100e-06];
I_exp = [0, 2.35e-03, 2.7e-03, 3.125e-03, 3.29e-03, 3.25e-03]
Now what I am trying to do is feed the lsqcurvefit function my s_bulk array and get an array of I_num values but I am having difficulty doing that. I have tried arrayfun function but that does not seem to work inside the lsqcurvefit function.
So, to put things short I want to give my s_bulk array and get an array of I_num because that is what lsqcurvefit expects.
[k_m,resnorm,residual,exitflag,output]=lsqcurvefit(@PSw_EK_v7, k_m_0, s_bulk, I_exp, lb, ub, options);
  댓글 수: 4
Hashim
Hashim 2021년 11월 21일
lb = 1e06;
ub = 1e09;
k_m_0 = 1.9e07;

댓글을 달려면 로그인하십시오.

채택된 답변

Matt J
Matt J 2021년 11월 21일
c0 = [ic_arg{1}(x).'; ic_arg{2}(x).'; ic_arg{3}(x).'];
  댓글 수: 19
Matt J
Matt J 2021년 11월 23일
편집: Matt J 2021년 11월 23일
Yes, it will be 6 times slower because lsqcurvefit needs to run the ODE solver for each i=1...6.

댓글을 달려면 로그인하십시오.

추가 답변(0개)

범주

Find more on Simulink Environment Customization in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by