Re: Octave 4.0.0_signal package_ellipord.m_xubuntu

[Tarmo Tapio]

Ok.

I can not open this kind of file format. Are you using Linux or windows pc? What octave version?

Tarmo

Doug Stewart kirjoitti 1.11.2018 klo 14.40:

On Thu, Nov 1, 2018 at 8:08 AM Tarmo Tapio <address@hidden> wrote:

I included it last time, but here is txt-file.

% The following 3 lines produce filter coefficients shown in Table 6.1.
wp = [0.35,0.65]; ws = [0.25,0.75]; Rp = 1; As = 50;
[N, wn] = ellipord(wp, ws, Rp, As);
[b,a] = ellip(N,Rp,As,wn);
w = [0:500]*pi/500; H = freqz(b,a,w); magH = abs(H);
magHdb = 20*log10(magH);

This code works OK for me!

I get the results shown in the attached file

 

.....

Tarmo

Doug Stewart kirjoitti 1.11.2018 klo 12.50:

On Thu, Nov 1, 2018, 12:25 AM Tarmo Tapio <address@hidden wrote:

I have upgraded now to version 4.2.2 (sudo add-apt-repository ppa:octave/stable) but I get same error.

Ok

Can you show me a small section of code  that will make the error?

Doug Stewart kirjoitti 31.10.2018 klo 19.22:

On Wed, Oct 31, 2018 at 1:08 PM Tarmo Tapio <address@hidden> wrote:

Hi

I have problem to use Octave 4.0.0 version's function ellipord.m (signal
package version 1.4.0?). File included. I get error
"validate_filter_bands". My operation system is Linux Xubuntu 16.04.
What is my fault?

Tarmo

Thank you for starting a new thread.

Octave 4.0.0 is very old, and lots of thing have been fixed since then.

I think you should upgrade to the newest octvae.

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DAS

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DAS