Save matrix to a txt file - matlab 在matlab中将矩阵变量保存为txt格式

Source: Baidu Wenku

% Original code has been modified
dirMain = 'D:\test\';  
fid = fopen([dirMain, 'test.txt'], 'wt');    % Create txt if the txt not exist
matrix = round(rand(4, 5) * 100);  
  
[m, n] = size(matrix);   
for i = 1 : m  
    for j = 1 : n  
        if j == n  
            fprintf(fid, '%4f\n', matrix(i,j));    % \n: new line
        else   
            fprintf(fid, '%4f\t', matrix(i,j));    % \t: horizontal tab
        end  
    end   
end   
fclose(fid);   

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