How to save multiple polts with the source file name using loop?

Question

Rajeev Kumar 2023-2-11

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1910700-how-to-save-multiple-polts-with-the-source-file-name-using-loop

评论： Rik 2023-2-11

Code

folder = "C:\Users\91743\OneDrive\Documents\MATLAB\MATLAB\Files"; % specify the path to the folder

%filepattern=fullfile(folder,'.csv');

files = dir(fullfile(folder, '*.mat')); % get a list of all .mat files in the folder

nFiles = numel(files); % number of files in the folder

for i = 1:nFiles

signal=fullfile(folder, files(i).name); % load the signal from the .mat file

%x = signal; % extract the signal from the .mat file

% signal1=signal(:,1);

D = load(signal); % ugh ugh ugh, that ugly prefix on those poor variable names!

D = cell2struct(struct2cell(D),regexprep(fieldnames(D),'^\w\d+_?',''),1); % much better.

files(i).data = D;

D=[files.data];

current_signal=D(i).DE_time;

%signal1=struct2array(signal);

%field_names=getfield(signal);

%current_signal=field_names{1};

%disp(current_signal);

%current_signal1=load(current_signal'.mat');

%current_signal1=

Fs=51200; %sampling frequency

T=1/Fs; %sampling period

L=length(current_signal); %Lenght of the signal

%t=((0:L-1)*T);

req=((0:L-1)*Fs/L);

xdft1 = fft(current_signal); %Compute FFT

xdft1 = 1/L*xdft1; %Normalize

xdft1(2:end-1) = 2*xdft1(2:end-1);

X_mag = abs(xdft1);

freq=((0:L-1)*Fs/L);

%X = fft(signal); % compute the FFT of the signal

%magX = abs(X); % magnitude of the FFT

%phaseX = angle(X); % phase of the FFT

figure;

plot(freq,X_mag,'LineWidth',1);

xlim([0 1000]);

xlabel('Frequency (Hz)');

ylabel('Acceleration (g)');

%savefig([field_names num2str(i) '.fig']);

end

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Stephen23 2023-2-11

Question context:

https://www.mathworks.com/matlabcentral/answers/1907920-how-to-load-multiple-mat-files-which-are-having-subfile-in-mat-format-using-the-loop

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Answer 1

Rik 2023-2-11

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1910700-how-to-save-multiple-polts-with-the-source-file-name-using-loop#answer_1169050

You have all elements already in your code. Why not uncomment savefig and use files(i).name?

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Rajeev Kumar 2023-2-11

'savefig and use files(i).name' is not worked for save the all graph.

Rik 2023-2-11

What code did you try and how did the result differ from what you want. I can't read your mind and I can't see your computer screen, so you will have to explain these things.

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How to save multiple polts with the source file name using loop?

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How to save multiple polts with the source file name using loop?

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