file read & write to text file for long data

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제 허 on 25 Sep 2021

Answered: 제 허on 27 Sep 2021

I want to write binary data to .txt format

                         clearall; closeall
                        
                         rng(1);
                        
                         x = randi([0,1], 1,10000);
                        
                         fileID = fopen('test_vector2.txt','w');
                        
                         fprintf(fileID,'%d \n',x);
                        
                         fclose(fileID);

when I open the .txt file in matlab, it is not problem. but when i open the file extenal of matlab, I cant understand contents of file.

in the case of small size x, there are not problem, but another case big size x, there are problem.

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Ive J on 26 Sep 2021

What do you mean by " when i open the file extenal of matlab, I cant understand contents of file "? If you open test_vector2.txt in any text editor, you can see the contents. Note that also it's not a binary file, it's a plain text file.

What do you wanna do and what's your problem exactly?

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제 허 on 27 Sep 2021

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//www.tatmou.com/matlabcentral/answers/1460604-file-read-write-to-text-file-for-long-data#answer_795839

when I open the file double click, I cant understand .txt file as above figure.

but when I open the file in matlab, I can understand and read this data.

I guess that data x is so long, then the file is broken. ??

thank you for your answer

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