Writing a commented output to file

[AlexG1]

John W. Eaton-3 wrote:
> 
> 
> Here's one more way:
> 
>   fid = fopen ('foo.dat', 'w');
>   fprintf (fid, '%% Some comment 1\n%% Some comment 2\n');
>   nc = size (x, 2);
>   fmt = sprintf ('%s\n', repmat ('%f ', [1, nc]));
>   fprintf (fid, fmt, x');
>  
> 
> 

Thanks, works great. 
There's something I didn't understand though - can you please explain why
the transpose on the fprintf() call is needed?
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