data fitting to equation
1 次查看(过去 30 天)
显示 更早的评论
I have data for time(t) and pressure (p).
I want to fit these data to equation
I have done simple calcualtion and fittings in matlab. plese suggest how to fit data.
回答(1 个)
Just Manuel
2021-2-24
Refer to this answer from Star Strider:
You can fit any function using simple least squares regression. Just formulate your function (i guess you have already done that) in matlab, then make a cost function (least squares) and use fminsearch to optimize parameters c1 and c2
P = @(c, t) ... % your function
cost = @(c) sum((P(c,t) - p).^2);
% guess initial parameters
c_guess = [1 1];
% use fminsearch
c = fminsearch(cost, guess);
Cheers
Manuel
2 个评论
Walter Roberson
2023-1-10
Your code 2 1/2 years ago did not involve fmincon at all, so we cannot guess what your current code looks like.
另请参阅
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!