Saving mat file with prefix over loop

조회 수: 4 (최근 30일)
adi kul
adi kul 2019년 12월 3일
답변: Walter Roberson 2019년 12월 4일
Hello,
Looking help in saving same .mat file with prefix over loop.
Facing error with following script:
clear all
close all
d = uigetdir();
filePattern = fullfile(d, '*.mat');
file = dir(filePattern);
for k = 1: numel(file)
baseFileName = file(k).name;
fullFileName = fullfile(d, baseFileName);
% my code here
outputBaseFileName = sprintf('Edited_%s', baseFileName);
outputFullFileName = fullfile(file(k).folder, outputBaseFileName);
save(outputFullFileName,'Variable_1','-append');
end
Error I am getting is:
Error using save
Unable to write file 'myPath\Edited_myFileName.mat'
No such file or directory.
Error in Untitled (line 29)
save(outputFullFileName,'Variable_1','-append');
  댓글 수: 6
Stephane
Stephane 2019년 12월 3일
You can cerate a dummy text file where you want to save your files, then compare its path+name to the output of outputFullFileName
adi kul
adi kul 2019년 12월 4일
Thing is if I use fullFileName instead of outputFullFilename it indeed saves same file with added variable.
% outputBaseFileName = sprintf('Edited_%s', baseFileName);
% outputFullFileName = fullfile(file(k).folder, outputBaseFileName);
save(fullFileName,'Variable_1','-append');
I am not sure what's wrong in here. Here is the full code here:
clear all
close all
d = uigetdir();
filePattern = fullfile(d, '*.mat');
file = dir(filePattern);
for k = 1: numel(file)
baseFileName = file(k).name;
fullFileName = fullfile(d, baseFileName);
x=load(fullFileName)
Variable_1=x.Variable_4./x.Varibale_5;
outputBaseFileName = sprintf('Edited_%s', baseFileName);
outputFullFileName = fullfile(file(k).folder, outputBaseFileName);
save(outputFullFileName,'Variable_1','-append');
end

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채택된 답변

Walter Roberson
Walter Roberson 2019년 12월 4일
clear all
close all
d = uigetdir();
filePattern = fullfile(d, '*.mat');
file = dir(filePattern);
for k = 1: numel(file)
baseFileName = file(k).name;
fullFileName = fullfile(d, baseFileName);
x=load(fullFileName)
x.Variable_1 = x.Variable_4./x.Varibale_5;
outputBaseFileName = sprintf('Edited_%s', baseFileName);
outputFullFileName = fullfile(file(k).folder, outputBaseFileName);
save(outputFullFileName, '-struct', 'x');
end

추가 답변 (1개)

Ruger28
Ruger28 2019년 12월 3일
편집: Ruger28 2019년 12월 3일
Your Edited .mat file does not exist, so you must create it. Check to see if it exists, if it does, append. If it does not, create it.
clear all
close all
d = uigetdir();
filePattern = fullfile(d, '*.mat');
file = dir(filePattern);
for k = 1: numel(file)
% my code here
outputFullFileName = fullfile(file(k).folder,sprintf('Edited_%s', file(k).name));
if exist(outputFullFileName,'file') % file exists
save(outputFullFileName,'Variable_1','-append');
else % file is new since you made it "edited", and needs created
save(outputFullFileName,'Variable_1');
end
end
  댓글 수: 1
adi kul
adi kul 2019년 12월 4일
this creates Edited_ .mat file but with only Variable_1 in it. While I want to have all the other variables from oriniglal .mat file and apend with Variable_1

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