Store fit output and call them later

1 回表示 (過去 30 日間)
Hussein Kokash
Hussein Kokash 2021 年 6 月 20 日
コメント済み: Hussein Kokash 2021 年 6 月 20 日
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

採用された回答

Walter Roberson
Walter Roberson 2021 年 6 月 20 日
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 件のコメント
Walter Roberson
Walter Roberson 2021 年 6 月 20 日
plot(saved_x{i}, predicted_y{i})
Hussein Kokash
Hussein Kokash 2021 年 6 月 20 日
Superb!
Thank you!

サインインしてコメントする。

その他の回答 (0 件)

カテゴリ

Help Center および File ExchangeGet Started with Curve Fitting Toolbox についてさらに検索

製品


リリース

R2021a

Community Treasure Hunt

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

Start Hunting!

Translated by