Store fit output and call them later

1 次查看(过去 30 天)
Dears, hope all are doing great!
I have the following script I use to read files and then fit them using curve fitting, my goal is to store the output of the fit for each file so that I can plot them all using the same x-axis, so the idea is to replace y values with the new fit output for each file, how is that possible?
Thank you, appreciate it.
[file_list, path_n] = uigetfile('.txt', 'Multiselect', 'on');
filesSorted = natsortfiles(file_list);
if iscell(filesSorted) == 0;
filesSorted = (filesSorted);
end
for i = 1:length(filesSorted);
filename = filesSorted{i};
data = load([path_n filename]);
x = data (:,1);
y = data (:,2);
T = data (1,3);
Time(i) = T;
% Curve fitting
f=fit(x, y, 'fourier1')
%figure(i)
plot(f, x, y)
hold on
formula(f)
coefficients = coeffvalues(f)
end

采纳的回答

Walter Roberson
Walter Roberson 2021-6-20
f=fit(x, y, 'fourier1')
Once you have that, you could record f in a cell array.
Or... you can invoke
saved_x{i} = x;
saved_y{i} = y;
predicted_y{i} = f(x);
Here, predicted_y{i} will become a numeric vector of what the model values predict for the given x values; you would not need the fit object after that.
  3 个评论

请先登录,再进行评论。

更多回答(0 个)

类别

Help CenterFile Exchange 中查找有关 Get Started with Curve Fitting Toolbox 的更多信息

产品


版本

R2021a

Community Treasure Hunt

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

Start Hunting!

Translated by