필터 지우기
필터 지우기

Combine hundred of mat files into one mat file (same quantity of row and column)

조회 수: 1 (최근 30일)
Hello Sir,
I have 123 mat files with the same quantity of column and row (example in the attachments).
The problem is I want to combine all these 123 mat files into one mat file in order to plot graph.
How can I do?
Thank you for your support.

답변 (3개)

Image Analyst
Image Analyst 2022년 2월 20일

Voss
Voss 2022년 2월 20일
Here's one way:
% file_names = sprintfc('bearing1_1_%d.mat',1:123); % use this for files 1-123
file_names = sprintfc('bearing1_1_%d.mat',1:3);
% load the files into a struct array:
for ii = 1:numel(file_names)
data(ii) = load(file_names{ii});
end
disp(data)
1×3 struct array with fields: a
% vertically concatenate each struct's 'a' field into
% the 'a' field of a scalar struct 'all_data':
all_data = struct('a',vertcat(data.a))
all_data = struct with fields:
a: [98304×2 double]
% plot all the data:
plot(all_data.a(:,1),all_data.a(:,2),'.');
% save the combined data to a mat file:
save('bearing1_1_all.mat','-struct','all_data');
% check the mat file:
S = load('bearing1_1_all.mat')
S = struct with fields:
a: [98304×2 double]

Ive J
Ive J 2022년 2월 20일
You can load all together:
files = ["bearing1_1_1.mat", "bearing1_1_2.mat"]; % add all files here, use dir or ls
ds = fileDatastore(files, 'ReadFcn', @(x)struct2array(load(x)));
ds = readall(ds);
ds = vertcat(ds{:});

카테고리

Help CenterFile Exchange에서 Startup and Shutdown에 대해 자세히 알아보기

Community Treasure Hunt

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

Start Hunting!

Translated by