loading file using uigetfile

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NUR KHAIRUNNISA rahimi 2011-11-20

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https://ww2.mathworks.cn/matlabcentral/answers/21712-loading-file-using-uigetfile

I wrote a few lines of codes to open a file containing a list of words, but it doesn't seem to open any file when I choose the file from the dialogue box. Can anybody tell what did I do wrong somewhere? I dont think the 'return' code was the problem because when i set it into comment, the error still existed.

 [FILENAME, pathname] =  uigetfile('*.wsb', 'rt');
    if (isequal(FILENAME,0) || isequal(pathname,0))
       disp('User pressed cancel');
    else
       disp(['User selected', fullfile(pathname, FILENAME)]);
    end
    fid = fopen(FILENAME,'rt');
    if fid<0
        %error could not find the file
        return,
    end

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采纳的回答

Walter Roberson 2011-11-20

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https://ww2.mathworks.cn/matlabcentral/answers/21712-loading-file-using-uigetfile#answer_28597

You need to fopen fullfile(pathname, FILENAME) rather than just FILENAME, except in the case where the chosen file just happens to be in the current directory.

I notice that you provide 'rt' as the second argument to uigetfile(). Does 'rt' happen to be what you want to prompt the user with? Not out of the question, of course, but that would be unusual: the 'rt' suggests confusion with the 'rt' argument that would need to be provided to the fopen() function [which you have done].

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Fangjun Jiang 2011-11-20

uigetfile() just brings up a GUI for you to pick a file. Take a look at the help of uigetfile. [FILENAME, pathname] = uigetfile('*.wsb') is sufficient for you to choose from all the .wsb files. If you add the 'w+' as you did, the 'w+' would appear in the title bar in the GUI window that was brought up. It is meaningless and has nothing to do whether you want to write or read the file.

NUR KHAIRUNNISA rahimi 2011-11-20