Execute script on multiple Files

Question

Nainpreet 2023-4-13

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1946348-execute-script-on-multiple-files

评论： Nainpreet 2023-4-13

Hey,
i have multiple folders, within every folder is a .txt file. I need to run a script on every .txt file independently and need the output in the same folder as the .txt file is.

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Stephen23 2023-4-13

在 MATLAB Online 中打开

The MATLAB approach:

P = 'absolute or relative path to where the subfolders are';
S = dir(fullfile(P,'*','*.txt'));
for k = 1:numel(S)
    F = fullfile(S(k).folder,S(k).name);
    % your code here, to process file F
    output = ..
    G = fullfile(S(k).folder,'output.txt')
    % save output data in file G
end

Nainpreet 2023-4-13

PK_MAXH.m

i tried to implement it, but it some how doesnt work. Does it also work with the import feature ? I attached my code

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Answer 1

Stephen23 2023-4-13

0
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/1946348-execute-script-on-multiple-files#answer_1214958

编辑：Stephen23 2023-4-13

在 MATLAB Online 中打开

With many assumptions, e.g. that the required folders are all subfolders of one parent folder.

You should also pay attention to the advice you got for your prior questions, e.g.:

https://www.mathworks.com/matlabcentral/answers/1944924-sort-columns-by-pairs

opts = delimitedTextImportOptions("NumVariables", 9, "Encoding", "UTF16-LE");
% Specify range and delimiter
opts.DataLines = [30, Inf];
opts.Delimiter = "\t";
% Specify column names and types
opts.VariableNames = ["Name", "Frequenz", "Var3", "Var4", "Var5", "Var6", "Var7", "Var8", "Var9"];
opts.SelectedVariableNames = ["Name", "Frequenz"];
opts.VariableTypes = ["double", "double", "string", "string", "string", "string", "string", "string", "string"];
% Specify file level properties
opts.ExtraColumnsRule = "ignore";
opts.EmptyLineRule = "read";
% Specify variable properties
opts = setvaropts(opts, ["Var3", "Var4", "Var5", "Var6", "Var7", "Var8", "Var9"], "WhitespaceRule", "preserve");
opts = setvaropts(opts, ["Var3", "Var4", "Var5", "Var6", "Var7", "Var8", "Var9"], "EmptyFieldRule", "auto");
P = '\\DEDOSAN001\vol1\E\EMV\Kularia\Matlabprogramm\04_Messungen';
S = dir(fullfile(P,'*','Ergebnistabelle.txt'));
for k = 1:numel(S)
    F = fullfile(S(k).folder,S(k).name);
    T = readtable(F, opts);
    G = fullfile(S(k).folder,'RA1_AV.asc')
    fid = fopen(G,'wt');
    fprintf(fid, '%3.4f\t%f\n', [T.Name,T.Frequenz].');
    fclose(fid);
end