Matlab does not give the right answer

I have a code to load the files in the folder with filename_2,

Answer 1

[Azzi Abdelmalek]

Check if your file filename_2 exist in your folder

[Phong Pham]

it does

Answer 2

[Ilham Hardy]

Seems for me it has more to do with

for run= 2:2

and

for run= 1:1

[Ilham Hardy]

Use the debugger and check what are the value of

run

and

ic

And what if you use only the command without any for loop.

Answer 3

[Image Analyst]

Not really sure - maybe it's a conflict between using the command line version of load and the function version (do you even know the difference?) Do you really have an equal sign in the filename, and no extension (such as .mat) for it, and that filename_2 is the actual filename and not the variable name? Anyway, assuming that's the case, try this more robust code:

for run = 2:2
  for ic = 11:12
    if ic == 11
      fullFileName = fullfile(pwd, 'filename_2');
    else
      fullFileName = fullfile(pwd, 'filename_2_eps=1');
    end
    if exist(fullFileName, 'file')
      load(fullFileName)
    else
      message = sprintf('Error: file not found:\n%s', fullFileName);
      uiwait(warndlg(message));
    end
  end
end

Or maybe it's the fact that you're using run as a variable name but MATLAB considers it a built-in function name (so you should not use run as a variable name, just like you shouldn't use for, while, sprintf, load, etc. as variable names either).

[Phong Pham]

this is what i have on mine

inside of Filename has X0in, other files have X0inPert

i did change run to nr. still does not look right. Thanks for all your helps. I appreciate that . Thanks again.

for nr=2:2

        for ic=11:12

            if ic==11

                nameS=strcat(pdir,'Filename/','Filename_',int2str(nr));

                load(nameS);

                X0in=X0in;
            else

                nameSi=strcat(pdir,'Filename/','Filename_',int2str(nr)','_eps=',int2str(1));
                load(nameSi);

                X0in=X0inPert;

            end

[Image Analyst]

Any reason why you chose to not include the parts of my code that make it robust (the call to fullfile() and the call to exist() and warndlg())? Also, I prefer sprintf() to strcat(), but it's your call. If you use my code, does it ever warn you that the file does not exist? If not, what's the problem now? I don't know what this means: "i still dont get the right answer for filename_2" Does that mean that filename_2 does not contain the correct filename, or that you are unable to read the contents of the file specified by filename_2? What format is filename_2 - Is it a text file, a csv file, a .mat file, or something else? Why doesn't it have an extension to indicate that? How was it created?

[Image Analyst]

I don't know what the second sentence means. What does "not right" mean to you? Also, there were 7 questions in my prior comment and you answered only 2 of them, at most.

[Walter Roberson]

Your loop is overwriting X0in on each iteration, it appears.