How to read and write a matrix in/from a file on MATLAB?
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Let's we assume that, I have a matrix :
%A=[M,N];
A=[ 5 5 5 5 5 55 5 55 5 ]
, I want to save A in a file TXT. and I can't open that file another time. Also I can modify that file, for example A=A*5;
I did not find the code.
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Image Analyst
el 12 de Dic. de 2020
Why can't you open it at another time? How did you write it? Did you use writematrix() or csvwrite()? Or did you use fprintf() but forgot to call fclose():
fid = fopen('TXT.txt', 'wt');
fprintf(fid, '%d ', A);
fclose(fid); % You need this, otherwise MATLAB MAY have a lock on it and other programs won't be able to open it.
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