matlab 将矩阵写入文件

function write_infile( filename,source_matrix )
%TEST Summary of this function goes here
%  write matrix to file


fid=fopen(filename,\'a\');


[x,y]=size(source_matrix);


for i=1:x
    for j=1:y-1
        fprintf(fid,\'%f\t\',source_matrix(i,j));
    end
    fprintf(fid,\'%f\n\',source_matrix(i,y));%每一行回车\n
end


fclose(fid);


end