Writing a Script..

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FG 2020-9-7

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https://ww2.mathworks.cn/matlabcentral/answers/589987-writing-a-script

评论： FG 2020-9-7

Hi all.. I have a bunch of mat files consisting of 25 types data each inside. I am interested in only 4 of them. They also are in another directory different than matlab. What I want to do is reading only all 4 data from all mat files. How can I write a script for this.. Thnx

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KSSV 2020-9-7

What data to be read from each mat file?

FG 2020-9-7

Harmonics for example.. 3,5,7 and thd

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Answer 1

Stephen23 2020-9-7

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https://ww2.mathworks.cn/matlabcentral/answers/589987-writing-a-script#answer_490885

在 MATLAB Online 中打开

D = 'absolute or relative path to the folder file where the files are saved';
S = dir(fullfile(D,'Case*.mat'));
N = numel(S);
C = cell(1,N);
for k = 1:N
    % change 'f1' etc. to the names of the data you want:
    T = load(fullfile(D,S(k).name),'f1','f2','f3','f4');
    S(k).f1 = T.f1;
    S(k).f2 = T.f2;
    S(k).f3 = T.f3;
    S(k).f4 = T.f4;
end

It will import the required file data into the structure S:

https://www.mathworks.com/help/matlab/matlab_prog/access-multiple-elements-of-a-nonscalar-struct-array.html

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Stephen23 2020-9-7

编辑：Stephen23 2020-9-7

"is it going to read case1111, case1112, case1113.. etc. automatically ?"

Yes.

"And what is gonna be the name here..?"

name is one the fields in the structure returned by dir, the field contains the filenames. To know more read the dir documentation and the link that I gave you

FG 2020-9-7