Counting the amount of times a specific error appears

I am currently writing a script that opens a file directory, and then reads through each of the reports. The reports have the exact same structureand give True/False results.

I want to be able to identify when there is a 'False' and give the line number where it is found [this I have accomplished with my current code]

Depending on which line the 'false' is found I want to link it to a specific error code

Then after all of the files have been read I want to see the total amount of times that a specific error code appeared

myFolder = 'C:\file\location';

% Check to make sure that folder actually exists.  Warn user if it doesn't.
if ~isfolder(myFolder)
    errorMessage = sprintf('Error: The following folder does not exist:\n%s\nPlease specify a new folder.', myFolder);
    uiwait(warndlg(errorMessage));
    myFolder = uigetdir(); % Ask for a new one.

    if myFolder == 0
         % User clicked Cancel
         return;
    end
end

% Get a list of all files in the folder with the desired file name pattern.
filePattern = fullfile(myFolder, '*.m'); % Change to whatever pattern you need.
theFiles = dir(filePattern);

for k = 1 : length(theFiles)
    baseFileName = theFiles(k).name;
    fullFileName = fullfile(theFiles(k).folder, baseFileName);
    fprintf(1, 'Now reading %s\n', fullFileName);

fid = fopen(fullFileName);
tline = fgetl(fid);
linecounter = 0;

%tests that you want to track the number of fails of
noisefailcounter=0;
spectrumfailcounter=0;

while ischar(tline)
%disp(tline) %if you want to display the whole file that is being read
    
%identifies when there is a fail in any given line    

    if contains(tline,'FALSE') 
        disp(tline)
        i=1;
    else
        i=0;
    end

%depending in which line the fail occurs it is correlated to a specififc test that failed

    if linecounter==3 || i==1 
       noisefailcounter=noisefailcounter+1;
    end     

    if linecounter==8 || i==1
        spectrumfailcounter=spectrumfailcounter+1;
    end 

 linecounter = linecounter+1;
 tline=fgetl(fid);
   

end


TotalNoiseFail=noisefailcounter
TotalSpectrumFail=spectrumfailcounter

fclose(fid);

end

[Nicolas B]

Have you considered using patterns to scrap your files?

If your file contains only true/false lines, then there is the option to load a whole file (if they are not too long, otherwise, read it line per line), then split per line using splitlines() and then detect which lines contains true/false using contains() and aggregate your results.

If your file is structures (with for example test names), uses simply extract() to get your results.

Answer 1

[dpb]

It would be easier to be sure solve the problem if you would attach a sample file, but...

...
% Get a list of all files in the folder with the desired file name pattern.
filePattern = fullfile(myFolder, '*.m'); % Change to whatever pattern you need.
theFiles = dir(filePattern);
noisefailcounter=0;
spectrumfailcounter=0;
for k = 1:numel(theFiles)
  baseFileName = theFiles(k).name;
  fullFileName = fullfile(theFiles(k).folder, baseFileName);
  fprintf('Now reading %s\n', fullFileName);
  data=readlines(fullFileName);                         % return whole file as string array
  isFalse=contains(data,'FALSE');                       % logical array of FALSE-containing records
  ixFalse=find(isFalse);                                % and the locations in the file
  noisefailcounter=noisefailcounter+(ixFalse==3);       % increment noise found counter
  spectrumfailcounter=spectrumfailcounter+(ixFalse==8); % ditto for spectrum
end
TotalNoiseFail=noisefailcounter;
TotalSpectrumFail=spectrumfailcounter;