freqz produces incorrect output

[John W. Eaton]

On  2-Feb-2009, Ben Abbott wrote:

| I had hoped to get to this sooner.
| 
| Please review the attached changeset for freqz.m. I made a simple  
| addition to Frederick's work that ensures a causal phase delay when  
| there are not output arguments (which results in a figure being  
| rendered).
| 
| I've compared the two examples below to the result Søren obtained  
| using Matlab.
| 
| 	freqz ([ones(1, 20), zeros(1, 768-20)], 1, 512, "half", 2);
| 
| 	freqz ([zeros(1, 768-20), ones(1, 20)], 1, 512, "half", 2);
| 
| The result Søren obtained running Matlab is still here; http://hauberg.org/freqz

I applied the changeset.

Thanks,

jwe