[Octave-bug-tracker] [bug #40155] Octave does not produce same results as Matlab for iir scripts

[Doug Stewart]

Follow-up Comment #2, bug #40155 (project octave):

I think the problem is in the filter functions

The error line is:
sos=zp2sos(Z,P,K);                      % Convert ZP to SOS 

when I change it to 
sos=zp2sos(Z',P',K);                      % Convert ZP to SOS 
then it is OK.

the zp2sos is expecting  column vectors but the filter designs
are giving row vectors. Matlab says the they use column vectors.

I did not look at the gain problem yet.
Doug

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